LCOV - code coverage report
Current view: top level - src - qs_dispersion_utils.F (source / functions) Coverage Total Hit
Test: CP2K Regtests (git:06f838d) Lines: 37.9 % 862 327
Test Date: 2026-06-05 07:04:50 Functions: 88.9 % 9 8

            Line data    Source code
       1              : !--------------------------------------------------------------------------------------------------!
       2              : !   CP2K: A general program to perform molecular dynamics simulations                              !
       3              : !   Copyright 2000-2026 CP2K developers group <https://cp2k.org>                                   !
       4              : !                                                                                                  !
       5              : !   SPDX-License-Identifier: GPL-2.0-or-later                                                      !
       6              : !--------------------------------------------------------------------------------------------------!
       7              : 
       8              : ! **************************************************************************************************
       9              : !> \brief Set disperson types for DFT calculations
      10              : !> \author JGH (04.2014)
      11              : ! **************************************************************************************************
      12              : MODULE qs_dispersion_utils
      13              : 
      14              :    USE atomic_kind_types,               ONLY: atomic_kind_type,&
      15              :                                               get_atomic_kind
      16              :    USE cp_log_handling,                 ONLY: cp_get_default_logger,&
      17              :                                               cp_logger_type
      18              :    USE cp_output_handling,              ONLY: cp_print_key_finished_output,&
      19              :                                               cp_print_key_unit_nr
      20              :    USE input_constants,                 ONLY: &
      21              :         vdw_nl_DRSLL, vdw_nl_LMKLL, vdw_nl_RVV10, vdw_pairpot_dftd2, vdw_pairpot_dftd3, &
      22              :         vdw_pairpot_dftd3bj, vdw_pairpot_dftd4, xc_funct_b3lyp, xc_funct_blyp, xc_funct_bp, &
      23              :         xc_funct_no_shortcut, xc_funct_pbe, xc_funct_pbe0, xc_funct_tpss, xc_none, &
      24              :         xc_vdw_fun_nonloc, xc_vdw_fun_pairpot
      25              :    USE input_section_types,             ONLY: section_vals_get_subs_vals,&
      26              :                                               section_vals_type,&
      27              :                                               section_vals_val_get
      28              :    USE kinds,                           ONLY: default_string_length,&
      29              :                                               dp
      30              :    USE physcon,                         ONLY: bohr,&
      31              :                                               kjmol
      32              :    USE qs_dispersion_types,             ONLY: qs_atom_dispersion_type,&
      33              :                                               qs_dispersion_type
      34              :    USE qs_environment_types,            ONLY: get_qs_env,&
      35              :                                               qs_environment_type
      36              :    USE qs_kind_types,                   ONLY: get_qs_kind,&
      37              :                                               qs_kind_type
      38              :    USE string_utilities,                ONLY: lowercase,&
      39              :                                               uppercase
      40              : #include "./base/base_uses.f90"
      41              : 
      42              :    IMPLICIT NONE
      43              : 
      44              :    PRIVATE
      45              : 
      46              :    CHARACTER(len=*), PARAMETER, PRIVATE :: moduleN = 'qs_dispersion_utils'
      47              : 
      48              :    PUBLIC :: qs_dispersion_env_set, qs_write_dispersion
      49              :    PUBLIC :: cellhash, xc_functional_to_d_name, xc_functional_to_d4_name_int, xc_functional_detect_expanded
      50              : 
      51              : ! **************************************************************************************************
      52              : CONTAINS
      53              :    ! **************************************************************************************************
      54              : !> \brief ...
      55              : !> \param xc_functional_name ...
      56              : !> \param d_functional_name ...
      57              : ! **************************************************************************************************
      58           50 :    SUBROUTINE xc_functional_to_d_name(xc_functional_name, d_functional_name)
      59              :       CHARACTER(len=*), INTENT(IN)                       :: xc_functional_name
      60              :       CHARACTER(len=*), INTENT(OUT)                      :: d_functional_name
      61              : 
      62           50 :       IF (TRIM(ADJUSTL(xc_functional_name)) == "BP") THEN
      63            8 :          d_functional_name = "bp86"
      64              :       ELSE
      65           42 :          d_functional_name = TRIM(ADJUSTL(xc_functional_name))
      66           42 :          CALL lowercase(d_functional_name)
      67              :       END IF
      68              : 
      69           50 :    END SUBROUTINE xc_functional_to_d_name
      70              : 
      71              : ! **************************************************************************************************
      72              : !> \brief ...
      73              : !> \param xc_functional_id ...
      74              : !> \param xc_functional_name ...
      75              : ! **************************************************************************************************
      76            0 :    SUBROUTINE xc_functional_to_d4_name_int(xc_functional_id, xc_functional_name)
      77              :       INTEGER, INTENT(IN)                                :: xc_functional_id
      78              :       CHARACTER(len=*), INTENT(OUT)                      :: xc_functional_name
      79              : 
      80            0 :       SELECT CASE (xc_functional_id)
      81              :       CASE (xc_funct_pbe)
      82            0 :          xc_functional_name = "PBE"
      83              :       CASE (xc_funct_pbe0)
      84            0 :          xc_functional_name = "PBE0"
      85              :       CASE (xc_funct_b3lyp)
      86            0 :          xc_functional_name = "B3LYP"
      87              :       CASE (xc_funct_blyp)
      88            0 :          xc_functional_name = "BLYP"
      89              :       CASE (xc_funct_bp)
      90            0 :          xc_functional_name = "BP"
      91              :       CASE (xc_funct_tpss)
      92            0 :          xc_functional_name = "TPSS"
      93              :       CASE DEFAULT
      94            0 :          xc_functional_name = "NONE"
      95              :       END SELECT
      96              : 
      97            0 :    END SUBROUTINE xc_functional_to_d4_name_int
      98              : 
      99              : ! **************************************************************************************************
     100              : !> \brief ...
     101              : !> \param xc_fun_section ...
     102              : !> \param xc_functional_name ...
     103              : ! **************************************************************************************************
     104         6302 :    SUBROUTINE xc_functional_detect_expanded(xc_fun_section, xc_functional_name)
     105              :       TYPE(section_vals_type), POINTER                   :: xc_fun_section
     106              :       CHARACTER(len=*), INTENT(OUT)                      :: xc_functional_name
     107              : 
     108         6302 :       CHARACTER(len=20), ALLOCATABLE                     :: sub_names(:)
     109              :       INTEGER                                            :: i, n_explicit
     110              :       LOGICAL :: has_becke88, has_lyp, has_mgga_c_r2scan, has_mgga_c_scan, has_mgga_x_r2scan, &
     111              :          has_mgga_x_scan, has_optx, has_p86c, has_pbe0_13, has_vwn, has_xalpha
     112              :       REAL(dp)                                           :: scal_x_pbe
     113              :       TYPE(section_vals_type), POINTER                   :: sub_section
     114              : 
     115         6302 :       n_explicit = 0
     116         6302 :       has_becke88 = .FALSE.; has_lyp = .FALSE.; has_vwn = .FALSE.; has_p86c = .FALSE.
     117         6302 :       has_xalpha = .FALSE.; has_optx = .FALSE.; has_pbe0_13 = .FALSE.
     118         6302 :       has_mgga_c_r2scan = .FALSE.; has_mgga_x_r2scan = .FALSE.
     119         6302 :       has_mgga_c_scan = .FALSE.; has_mgga_x_scan = .FALSE.
     120              : 
     121        18906 :       ALLOCATE (sub_names(xc_fun_section%section%n_subsections))
     122              : 
     123      4461816 :       DO i = 1, xc_fun_section%section%n_subsections
     124      4455514 :          sub_section => xc_fun_section%subs_vals(i, 1)%section_vals
     125      4461816 :          IF (SIZE(sub_section%values, 2) > 0) THEN
     126         6524 :             n_explicit = n_explicit + 1
     127         6524 :             sub_names(n_explicit) = TRIM(ADJUSTL(sub_section%section%name))
     128          510 :             SELECT CASE (sub_names(n_explicit))
     129          510 :             CASE ("BECKE88"); has_becke88 = .TRUE.
     130          502 :             CASE ("LYP"); has_lyp = .TRUE.
     131           26 :             CASE ("VWN"); has_vwn = .TRUE.
     132           10 :             CASE ("P86C"); has_p86c = .TRUE.
     133           56 :             CASE ("XALPHA"); has_xalpha = .TRUE.
     134            4 :             CASE ("OPTX"); has_optx = .TRUE.
     135            2 :             CASE ("MGGA_C_R2SCAN"); has_mgga_c_r2scan = .TRUE.
     136            2 :             CASE ("MGGA_X_R2SCAN"); has_mgga_x_r2scan = .TRUE.
     137            2 :             CASE ("MGGA_C_SCAN"); has_mgga_c_scan = .TRUE.
     138            2 :             CASE ("MGGA_X_SCAN"); has_mgga_x_scan = .TRUE.
     139            0 :             CASE ("PBE0_1/3"); has_pbe0_13 = .TRUE.
     140              :             CASE ("PBE")
     141         2438 :                CALL section_vals_val_get(sub_section, "SCALE_X", r_val=scal_x_pbe)
     142         6524 :                IF (ABS(scal_x_pbe - 0.75_dp) < 0.01_dp) has_pbe0_13 = .TRUE.
     143              :             END SELECT
     144              :          END IF
     145              :       END DO
     146              : 
     147         6302 :       IF (has_becke88 .AND. has_lyp .AND. has_vwn .AND. has_xalpha) THEN
     148           26 :          xc_functional_name = "B3LYP"
     149         6276 :       ELSE IF (has_becke88 .AND. has_lyp) THEN
     150          936 :          xc_functional_name = MERGE("PBE0", "BLYP", has_pbe0_13)
     151         5808 :       ELSE IF (has_becke88 .AND. has_p86c) THEN
     152           10 :          xc_functional_name = "BP"
     153         5798 :       ELSE IF (has_optx .AND. has_lyp) THEN
     154            4 :          xc_functional_name = "OLYP"
     155         5794 :       ELSE IF (has_mgga_c_r2scan .AND. has_mgga_x_r2scan) THEN
     156            2 :          xc_functional_name = "R2SCAN"
     157         5792 :       ELSE IF (has_mgga_c_scan .AND. has_mgga_x_scan) THEN
     158            2 :          xc_functional_name = "SCAN"
     159         5790 :       ELSE IF (n_explicit == 1 .AND. has_pbe0_13) THEN
     160          550 :          xc_functional_name = "PBE0"
     161         5240 :       ELSE IF (n_explicit == 1) THEN
     162         4518 :          xc_functional_name = sub_names(1)
     163              :       ELSE
     164          722 :          xc_functional_name = "NONE"
     165              :       END IF
     166              : 
     167        12604 :    END SUBROUTINE xc_functional_detect_expanded
     168              : 
     169              : !> \brief ...
     170              : !> \param dispersion_env ...
     171              : !> \param xc_section ...
     172              : ! **************************************************************************************************
     173        12604 :    SUBROUTINE qs_dispersion_env_set(dispersion_env, xc_section)
     174              :       TYPE(qs_dispersion_type), POINTER                  :: dispersion_env
     175              :       TYPE(section_vals_type), POINTER                   :: xc_section
     176              : 
     177              :       CHARACTER(len=60)                                  :: xc_functional_name
     178              :       INTEGER                                            :: xc_functional_id
     179              :       LOGICAL                                            :: exfun, explicit
     180         6302 :       REAL(dp), POINTER                                  :: params(:), scal(:)
     181              :       TYPE(section_vals_type), POINTER                   :: nl_section, pp_section, vdw_section, &
     182              :                                                             xc_fun_section
     183              : 
     184            0 :       CPASSERT(ASSOCIATED(dispersion_env))
     185              : 
     186              :       ! set general defaults
     187         6302 :       dispersion_env%doabc = .FALSE.
     188         6302 :       dispersion_env%c9cnst = .FALSE.
     189         6302 :       dispersion_env%lrc = .FALSE.
     190         6302 :       dispersion_env%srb = .FALSE.
     191         6302 :       dispersion_env%verbose = .FALSE.
     192         6302 :       dispersion_env%nd3_exclude_pair = 0
     193         6302 :       NULLIFY (dispersion_env%c6ab, dispersion_env%maxci, dispersion_env%r0ab, dispersion_env%rcov, &
     194         6302 :                dispersion_env%r2r4, dispersion_env%cn, dispersion_env%cnkind, dispersion_env%cnlist, &
     195         6302 :                dispersion_env%d3_exclude_pair)
     196         6302 :       NULLIFY (dispersion_env%q_mesh, dispersion_env%kernel, dispersion_env%d2phi_dk2, &
     197         6302 :                dispersion_env%d2y_dx2)
     198         6302 :       NULLIFY (dispersion_env%sab_vdw, dispersion_env%sab_cn)
     199         6302 :       NULLIFY (dispersion_env%dftd_section)
     200         6302 :       NULLIFY (vdw_section, xc_fun_section)
     201         6302 :       vdw_section => section_vals_get_subs_vals(xc_section, "vdw_potential")
     202         6302 :       xc_fun_section => section_vals_get_subs_vals(xc_section, "XC_FUNCTIONAL")
     203         6302 :       CALL section_vals_val_get(xc_fun_section, "_SECTION_PARAMETERS_", i_val=xc_functional_id)
     204         6302 :       IF (xc_functional_id == xc_funct_no_shortcut .OR. xc_functional_id == xc_none) THEN
     205         6302 :          CALL xc_functional_detect_expanded(xc_fun_section, xc_functional_name)
     206              :       ELSE
     207            0 :          CALL xc_functional_to_d4_name_int(xc_functional_id, xc_functional_name)
     208              :       END IF
     209         6302 :       CALL section_vals_val_get(vdw_section, "POTENTIAL_TYPE", i_val=dispersion_env%type)
     210         6302 :       IF (dispersion_env%type == xc_vdw_fun_pairpot) THEN
     211          178 :          NULLIFY (pp_section)
     212          178 :          pp_section => section_vals_get_subs_vals(vdw_section, "PAIR_POTENTIAL")
     213          178 :          CALL section_vals_val_get(pp_section, "VERBOSE_OUTPUT", l_val=dispersion_env%verbose)
     214          178 :          CALL section_vals_val_get(pp_section, "TYPE", i_val=dispersion_env%pp_type)
     215          178 :          IF (dispersion_env%pp_type == vdw_pairpot_dftd2) THEN
     216              :             ! functional parameters for Grimme D2 type
     217           34 :             CALL section_vals_val_get(pp_section, "EXP_PRE", r_val=dispersion_env%exp_pre)
     218           34 :             CALL section_vals_val_get(pp_section, "SCALING", explicit=explicit)
     219           34 :             IF (.NOT. explicit) THEN
     220           22 :                CALL section_vals_val_get(pp_section, "REFERENCE_FUNCTIONAL", explicit=exfun)
     221           22 :                IF (.NOT. exfun) THEN
     222           12 :                   CALL xc_functional_to_d_name(xc_functional_name, dispersion_env%ref_functional)
     223           12 :                   IF (dispersion_env%ref_functional == "none") THEN
     224              :                      CALL cp_abort(__LOCATION__, &
     225              :                                    "D2 vdW: XC_FUNCTIONAL not supported. "// &
     226              :                                    "Set REFERENCE_FUNCTIONAL explicitly. "// &
     227              :                                    "Go to https://www.chemie.uni-bonn.de/grimme/de/software/dft-d3/ "// &
     228            0 :                                    "for a full list of supported functionals")
     229              :                   END IF
     230              :                ELSE
     231              :                   CALL section_vals_val_get(vdw_section, &
     232              :                                             "PAIR_POTENTIAL%REFERENCE_FUNCTIONAL", &
     233           10 :                                             c_val=dispersion_env%ref_functional)
     234              :                END IF
     235           22 :                CALL qs_scaling_dftd2(dispersion_env%scaling, dispersion_env%ref_functional)
     236              :             ELSE
     237           12 :                CALL section_vals_val_get(pp_section, "SCALING", r_val=dispersion_env%scaling)
     238              :             END IF
     239              :          ELSE
     240          144 :             dispersion_env%exp_pre = 0._dp
     241          144 :             dispersion_env%scaling = 0._dp
     242              :          END IF
     243          178 :          IF (dispersion_env%pp_type == vdw_pairpot_dftd3 .OR. &
     244              :              dispersion_env%pp_type == vdw_pairpot_dftd3bj) THEN
     245              :             ! functional parameters for Grimme DFT-D3 type
     246          102 :             CALL section_vals_val_get(pp_section, "EPS_CN", r_val=dispersion_env%eps_cn)
     247          102 :             CALL section_vals_val_get(pp_section, "CALCULATE_C9_TERM", l_val=dispersion_env%doabc)
     248          102 :             CALL section_vals_val_get(pp_section, "REFERENCE_C9_TERM", l_val=dispersion_env%c9cnst)
     249          102 :             CALL section_vals_val_get(pp_section, "LONG_RANGE_CORRECTION", l_val=dispersion_env%lrc)
     250          102 :             CALL section_vals_val_get(pp_section, "SHORT_RANGE_CORRECTION", l_val=dispersion_env%srb)
     251          102 :             CALL section_vals_val_get(pp_section, "SHORT_RANGE_CORRECTION_PARAMETERS", r_vals=params)
     252          918 :             dispersion_env%srb_params(1:4) = params(1:4)
     253              :             ! KG corrections
     254          102 :             CALL section_vals_val_get(pp_section, "MOLECULE_CORRECTION", l_val=dispersion_env%domol)
     255          102 :             CALL section_vals_val_get(pp_section, "MOLECULE_CORRECTION_C8", r_val=dispersion_env%kgc8)
     256          102 :             IF (dispersion_env%pp_type == vdw_pairpot_dftd3) THEN
     257           60 :                CALL section_vals_val_get(pp_section, "D3_SCALING", explicit=explicit)
     258           42 :             ELSE IF (dispersion_env%pp_type == vdw_pairpot_dftd3bj) THEN
     259           42 :                CALL section_vals_val_get(pp_section, "D3BJ_SCALING", explicit=explicit)
     260              :             END IF
     261          102 :             IF (.NOT. explicit) THEN
     262           92 :                CALL section_vals_val_get(pp_section, "REFERENCE_FUNCTIONAL", explicit=exfun)
     263           92 :                IF (.NOT. exfun) THEN
     264           24 :                   CALL xc_functional_to_d_name(xc_functional_name, dispersion_env%ref_functional)
     265           24 :                   IF (dispersion_env%ref_functional == "none") THEN
     266              :                      CALL cp_abort(__LOCATION__, &
     267              :                                    "D3 vdW: XC_FUNCTIONAL not supported. "// &
     268              :                                    "Set REFERENCE_FUNCTIONAL explicitly. "// &
     269              :                                    "Go to https://www.chemie.uni-bonn.de/grimme/de/software/dft-d3/ for a full "// &
     270            0 :                                    "list of supported functionals")
     271              :                   END IF
     272              :                ELSE
     273              :                   CALL section_vals_val_get(vdw_section, &
     274              :                                             "PAIR_POTENTIAL%REFERENCE_FUNCTIONAL", &
     275           68 :                                             c_val=dispersion_env%ref_functional)
     276              :                END IF
     277           92 :                IF (dispersion_env%pp_type == vdw_pairpot_dftd3) THEN
     278              :                   CALL qs_scaling_dftd3(dispersion_env%s6, dispersion_env%sr6, &
     279           56 :                                         dispersion_env%s8, dispersion_env%ref_functional)
     280           36 :                ELSE IF (dispersion_env%pp_type == vdw_pairpot_dftd3bj) THEN
     281              :                   CALL qs_scaling_dftd3bj(dispersion_env%s6, dispersion_env%a1, dispersion_env%s8, &
     282           36 :                                           dispersion_env%a2, dispersion_env%ref_functional)
     283              :                END IF
     284              :             ELSE
     285           10 :                IF (dispersion_env%pp_type == vdw_pairpot_dftd3) THEN
     286              :                   ! zero damping
     287            4 :                   CALL section_vals_val_get(pp_section, "D3_SCALING", r_vals=scal)
     288            4 :                   dispersion_env%s6 = scal(1)
     289            4 :                   dispersion_env%sr6 = scal(2)
     290            4 :                   dispersion_env%s8 = scal(3)
     291            4 :                   dispersion_env%a1 = 0.0_dp
     292            4 :                   dispersion_env%a2 = 0.0_dp
     293            6 :                ELSE IF (dispersion_env%pp_type == vdw_pairpot_dftd3bj) THEN
     294              :                   ! BJ damping
     295            6 :                   CALL section_vals_val_get(pp_section, "D3BJ_SCALING", r_vals=scal)
     296            6 :                   dispersion_env%s6 = scal(1)
     297            6 :                   dispersion_env%a1 = scal(2)
     298            6 :                   dispersion_env%s8 = scal(3)
     299            6 :                   dispersion_env%a2 = scal(4)
     300            6 :                   dispersion_env%sr6 = 0.0_dp
     301              :                END IF
     302              :             END IF
     303              :          ELSE
     304           76 :             dispersion_env%s6 = 0._dp
     305           76 :             dispersion_env%sr6 = 0._dp
     306           76 :             dispersion_env%s8 = 0._dp
     307           76 :             dispersion_env%s9 = 0._dp
     308           76 :             dispersion_env%a1 = 0._dp
     309           76 :             dispersion_env%a2 = 0._dp
     310           76 :             dispersion_env%eps_cn = 0._dp
     311              :          END IF
     312          178 :          IF (dispersion_env%pp_type == vdw_pairpot_dftd4) THEN
     313           42 :             CALL section_vals_val_get(pp_section, "D4_SCALING", explicit=explicit)
     314           42 :             IF (.NOT. explicit) THEN
     315           42 :                CALL section_vals_val_get(pp_section, "REFERENCE_FUNCTIONAL", explicit=exfun)
     316           42 :                IF (.NOT. exfun) THEN
     317           14 :                   CALL xc_functional_to_d_name(xc_functional_name, dispersion_env%ref_functional)
     318              :                ELSE
     319              :                   CALL section_vals_val_get(vdw_section, &
     320              :                                             "PAIR_POTENTIAL%REFERENCE_FUNCTIONAL", &
     321           28 :                                             c_val=dispersion_env%ref_functional)
     322              :                END IF
     323           42 :                IF (TRIM(ADJUSTL(dispersion_env%ref_functional)) == "none") THEN
     324            0 :                   CPABORT("D4: XC_FUNCTIONAL not supported. Set REFERENCE_FUNCTIONAL explicitly.")
     325              :                END IF
     326              :             ELSE
     327            0 :                CALL section_vals_val_get(pp_section, "D4_SCALING", r_vals=scal)
     328            0 :                dispersion_env%s6 = scal(1)
     329            0 :                dispersion_env%a1 = scal(2)
     330            0 :                dispersion_env%s8 = scal(3)
     331            0 :                dispersion_env%a2 = scal(4)
     332            0 :                dispersion_env%sr6 = 0.0_dp
     333            0 :                dispersion_env%ref_functional = "none"
     334              :             END IF
     335           42 :             CALL section_vals_val_get(pp_section, "EPS_CN", r_val=dispersion_env%eps_cn)
     336              :             CALL section_vals_val_get(pp_section, "D4_REFERENCE_CODE", &
     337           42 :                                       l_val=dispersion_env%d4_reference_code)
     338           42 :             CALL section_vals_val_get(pp_section, "D4_DEBUG", l_val=dispersion_env%d4_debug)
     339           42 :             CALL section_vals_val_get(pp_section, "D4_CUTOFF", r_val=dispersion_env%rc_d4)
     340           42 :             CALL section_vals_val_get(pp_section, "D4_CN_CUTOFF", r_val=dispersion_env%rc_cn)
     341           42 :             CALL section_vals_val_get(pp_section, "FACTOR_S9_TERM", r_val=dispersion_env%s9)
     342              :             !C9 term default=T for D4
     343           42 :             CALL section_vals_val_get(pp_section, "CALCULATE_C9_TERM", explicit=exfun)
     344           42 :             IF (exfun) THEN
     345            8 :                CALL section_vals_val_get(pp_section, "CALCULATE_C9_TERM", l_val=dispersion_env%doabc)
     346              :             ELSE
     347           34 :                dispersion_env%doabc = .TRUE.
     348              :             END IF
     349              :          END IF
     350          178 :          CALL section_vals_val_get(pp_section, "R_CUTOFF", r_val=dispersion_env%rc_disp)
     351              :          CALL section_vals_val_get(pp_section, "PARAMETER_FILE_NAME", &
     352          178 :                                    c_val=dispersion_env%parameter_file_name)
     353              :          ! set DFTD section for output handling
     354          178 :          dispersion_env%dftd_section => pp_section
     355         6124 :       ELSE IF (dispersion_env%type == xc_vdw_fun_nonloc) THEN
     356           50 :          NULLIFY (nl_section)
     357           50 :          nl_section => section_vals_get_subs_vals(vdw_section, "NON_LOCAL")
     358           50 :          CALL section_vals_val_get(nl_section, "VERBOSE_OUTPUT", l_val=dispersion_env%verbose)
     359              :          CALL section_vals_val_get(nl_section, "KERNEL_FILE_NAME", &
     360           50 :                                    c_val=dispersion_env%kernel_file_name)
     361           50 :          CALL section_vals_val_get(nl_section, "TYPE", i_val=dispersion_env%nl_type)
     362           50 :          CALL section_vals_val_get(nl_section, "CUTOFF", r_val=dispersion_env%pw_cutoff)
     363           50 :          CALL section_vals_val_get(nl_section, "PARAMETERS", r_vals=params)
     364           50 :          CALL section_vals_val_get(nl_section, "SCALE", r_val=dispersion_env%scale_rvv10)
     365           50 :          dispersion_env%b_value = params(1)
     366           50 :          dispersion_env%c_value = params(2)
     367              :       END IF
     368         6302 :    END SUBROUTINE qs_dispersion_env_set
     369              : 
     370              : ! **************************************************************************************************
     371              : !> \brief ...
     372              : !> \param qs_env ...
     373              : !> \param dispersion_env ...
     374              : !> \param ounit ...
     375              : ! **************************************************************************************************
     376         7272 :    SUBROUTINE qs_write_dispersion(qs_env, dispersion_env, ounit)
     377              :       TYPE(qs_environment_type), POINTER                 :: qs_env
     378              :       TYPE(qs_dispersion_type), POINTER                  :: dispersion_env
     379              :       INTEGER, INTENT(in), OPTIONAL                      :: ounit
     380              : 
     381              :       CHARACTER(LEN=2)                                   :: symbol
     382              :       INTEGER                                            :: i, ikind, nkind, output_unit
     383         7272 :       TYPE(atomic_kind_type), DIMENSION(:), POINTER      :: atomic_kind_set
     384              :       TYPE(cp_logger_type), POINTER                      :: logger
     385              :       TYPE(qs_atom_dispersion_type), POINTER             :: disp
     386         7272 :       TYPE(qs_kind_type), DIMENSION(:), POINTER          :: qs_kind_set
     387              :       TYPE(section_vals_type), POINTER                   :: dft_section
     388              : 
     389         7272 :       IF (PRESENT(ounit)) THEN
     390            0 :          output_unit = ounit
     391              :       ELSE
     392         7272 :          NULLIFY (logger)
     393         7272 :          logger => cp_get_default_logger()
     394              : 
     395         7272 :          dft_section => section_vals_get_subs_vals(qs_env%input, "DFT")
     396              :          output_unit = cp_print_key_unit_nr(logger, dft_section, &
     397         7272 :                                             "PRINT%DFT_CONTROL_PARAMETERS", extension=".Log")
     398              :       END IF
     399              : 
     400         7272 :       IF (output_unit > 0) THEN
     401              :          ! vdW type specific output
     402         1581 :          IF (dispersion_env%type == xc_vdw_fun_pairpot) THEN
     403          106 :             WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T67,'Pair Potential')")
     404              :             ! Pair potentials
     405          106 :             IF (dispersion_env%pp_type == vdw_pairpot_dftd2) THEN
     406           15 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T35,'DFT-D2')")
     407           15 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T35,'Potential Form: S. Grimme, JCC 27: 1787 (2006)')")
     408           15 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T35,'Cutoff Radius [Bohr]:',T73,F8.2)") dispersion_env%rc_disp
     409           15 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T35,'Scaling Factor:',T73,F8.4)") dispersion_env%scaling
     410           15 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T35,'Exp Prefactor for Damping:',T73,F8.1)") dispersion_env%exp_pre
     411           15 :                CALL get_qs_env(qs_env, atomic_kind_set=atomic_kind_set, qs_kind_set=qs_kind_set)
     412           15 :                nkind = SIZE(atomic_kind_set)
     413           40 :                DO ikind = 1, nkind
     414           25 :                   CALL get_atomic_kind(atomic_kind_set(ikind), element_symbol=symbol)
     415           25 :                   CALL get_qs_kind(qs_kind_set(ikind), dispersion=disp)
     416           40 :                   IF (disp%defined) THEN
     417              :                      WRITE (output_unit, fmt="(' vdW PARAMETER| ',T18,'Atom=',A2, "// &
     418              :                             "T28,'C6[J*nm^6*mol^-1]=',F8.4,T63,'r(vdW)[A]=',F8.4)") &
     419           25 :                         symbol, disp%c6/(1000._dp*bohr**6/kjmol), disp%vdw_radii/bohr
     420              :                   ELSE
     421            0 :                      WRITE (output_unit, fmt="(' vdW PARAMETER| ',T20,'Atom=',A2,T70,'not defined')")
     422              :                   END IF
     423              :                END DO
     424           91 :             ELSE IF (dispersion_env%pp_type == vdw_pairpot_dftd3) THEN
     425           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'DFT-D3 (Version 3.1)')")
     426           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Potential Form: S. Grimme et al, JCP 132: 154104 (2010)')")
     427           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Zero Damping')")
     428           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Cutoff Radius [Bohr]:',T73,F8.2)") dispersion_env%rc_disp
     429           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'s6 Scaling Factor:',T73,F8.4)") dispersion_env%s6
     430           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'sr6 Scaling Factor:',T73,F8.4)") dispersion_env%sr6
     431           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'s8 Scaling Factor:',T73,F8.4)") dispersion_env%s8
     432           16 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Cutoff for CN calculation:',T69,E12.4)") dispersion_env%eps_cn
     433           16 :                IF (dispersion_env%nd3_exclude_pair > 0) THEN
     434            0 :                   DO i = 1, dispersion_env%nd3_exclude_pair
     435              :                      WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Excluded Pairs: ',T76,I2,' ',I2)") &
     436            0 :                         dispersion_env%d3_exclude_pair(i, :)
     437              :                   END DO
     438              :                END IF
     439           75 :             ELSE IF (dispersion_env%pp_type == vdw_pairpot_dftd3bj) THEN
     440           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'DFT-D3 (Version 3.1)')")
     441           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Potential Form: S. Grimme et al, JCP 132: 154104 (2010)')")
     442           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'BJ Damping: S. Grimme et al, JCC 32: 1456 (2011)')")
     443           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Cutoff Radius [Bohr]:',T73,F8.2)") dispersion_env%rc_disp
     444           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'s6 Scaling Factor:',T73,F8.4)") dispersion_env%s6
     445           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'a1 Damping Factor:',T73,F8.4)") dispersion_env%a1
     446           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'s8 Scaling Factor:',T73,F8.4)") dispersion_env%s8
     447           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'a2 Damping Factor:',T73,F8.4)") dispersion_env%a2
     448           58 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Cutoff for CN calculation:',T69,E12.4)") dispersion_env%eps_cn
     449           58 :                IF (dispersion_env%nd3_exclude_pair > 0) THEN
     450            0 :                   DO i = 1, dispersion_env%nd3_exclude_pair
     451              :                      WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'Excluded Kind Pairs: ',T76,I2,' ',I2)") &
     452            0 :                         dispersion_env%d3_exclude_pair(i, :)
     453              :                   END DO
     454              :                END IF
     455           17 :             ELSE IF (dispersion_env%pp_type == vdw_pairpot_dftd4) THEN
     456              : #if defined(__DFTD4_V3)
     457              :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'DFT-D4(Version 3.7)')")
     458              : #else
     459           17 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'DFT-D4(Version 4.0)')")
     460              : #endif
     461           17 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'see https://github.com/dftd4/dftd4')")
     462           17 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'E. Caldeweyher et al, PCCP 22: 8499 (2020)')")
     463           17 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'E. Caldeweyher et al, JCP 150: 154122 (2019)')")
     464           17 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T26,'E. Caldeweyher et al, JCP 147: 034112 (2017)')")
     465              :             END IF
     466         1475 :          ELSE IF (dispersion_env%type == xc_vdw_fun_nonloc) THEN
     467           13 :             WRITE (output_unit, fmt="(' vdW POTENTIAL| ',T61,'Non-local Functional')")
     468              :             WRITE (output_unit, &
     469           13 :                    fmt="(' vdW POTENTIAL| ','Implementation: G. Roman-Perez, J. Soler, PRL 103: 096102 (2009)')")
     470              :             WRITE (output_unit, &
     471           13 :                    fmt="(' vdW POTENTIAL| ',T38,' T. Thonhauser et al, PRB 76: 125112 (2007)')")
     472              :             WRITE (output_unit, &
     473           13 :                    fmt="(' vdW POTENTIAL| ',T22,' R. Sabatini et al, J.Phys:Condens Matter 24: 424209 (2012)')")
     474              :             WRITE (output_unit, &
     475           13 :                    fmt="(' vdW POTENTIAL| ',T16,' Based on QE implementation by Brian Kolb, Timo Thonhauser (2009)')")
     476           13 :             SELECT CASE (dispersion_env%nl_type)
     477              :             CASE DEFAULT
     478              :                ! unknown functional
     479            0 :                CPABORT("")
     480              :             CASE (vdw_nl_DRSLL)
     481              :                WRITE (output_unit, &
     482            8 :                       fmt="(' vdW POTENTIAL| ','DRSLL Functional:           M. Dion et al, PRL 92: 246401 (2004)')")
     483              :             CASE (vdw_nl_LMKLL)
     484              :                WRITE (output_unit, &
     485            3 :                       fmt="(' vdW POTENTIAL| ','LMKLL Functional:            K. Lee et al, PRB 82: 081101 (2010)')")
     486              :             CASE (vdw_nl_RVV10)
     487              :                WRITE (output_unit, &
     488           13 :                       fmt="(' vdW POTENTIAL| ','RVV10 Functional:    R. Sabatini et al, PRB 87: 041108(R) (2013)')")
     489              :             END SELECT
     490           13 :             IF (dispersion_env%verbose) THEN
     491              :                WRITE (output_unit, &
     492           12 :                       fmt="(' vdW POTENTIAL| ','         Carrying out vdW-DF run using the following parameters:')")
     493              :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ','Nqs =',I8,'        Nr_points =',I8,'       r_max =',F10.3)") &
     494           12 :                   dispersion_env%nqs, dispersion_env%nr_points, dispersion_env%r_max
     495           12 :                WRITE (output_unit, fmt="(' vdW POTENTIAL| ','q_mesh =')")
     496          252 :                WRITE (output_unit, fmt="(8X,4F18.8)") (dispersion_env%q_mesh(i), i=1, dispersion_env%nqs)
     497              :                WRITE (output_unit, &
     498              :                       fmt="(' vdW POTENTIAL| ','Density cutoff for convolution [a.u.]:',T71,F10.1)") &
     499           12 :                   dispersion_env%pw_cutoff
     500              :             END IF
     501              :          END IF
     502              :       END IF
     503         7272 :       IF (.NOT. PRESENT(ounit)) THEN
     504              :          CALL cp_print_key_finished_output(output_unit, logger, dft_section, &
     505         7272 :                                            "PRINT%DFT_CONTROL_PARAMETERS")
     506              :       END IF
     507              : 
     508         7272 :    END SUBROUTINE qs_write_dispersion
     509              : 
     510              : ! **************************************************************************************************
     511              : !> \brief ...
     512              : !> \param scaling ...
     513              : !> \param ref_functional ...
     514              : ! **************************************************************************************************
     515           22 :    SUBROUTINE qs_scaling_dftd2(scaling, ref_functional)
     516              :       REAL(KIND=dp), INTENT(inout)                       :: scaling
     517              :       CHARACTER(LEN=default_string_length), INTENT(in)   :: ref_functional
     518              : 
     519              :       CHARACTER(LEN=default_string_length)               :: functional
     520              : 
     521           22 :       functional = ref_functional
     522           22 :       CALL uppercase(functional)
     523           22 :       SELECT CASE (TRIM(functional))
     524              :       CASE DEFAULT
     525              :          ! unknown functional
     526            0 :          CPABORT("No DFT-D2 s6 value available for this functional:"//TRIM(functional))
     527              :       CASE ("BLYP")
     528            6 :          scaling = 1.20_dp
     529              :       CASE ("B3LYP")
     530            2 :          scaling = 1.05_dp
     531              :       CASE ("TPSS")
     532            2 :          scaling = 1.00_dp
     533              :       CASE ("PBE")
     534            8 :          scaling = 0.75_dp
     535              :       CASE ("PBE0")
     536            2 :          scaling = 0.6_dp
     537              :       CASE ("B2PLYP")
     538            0 :          scaling = 0.55_dp
     539              :       CASE ("BP86")
     540            2 :          scaling = 1.05_dp
     541              :       CASE ("B97")
     542           22 :          scaling = 1.25_dp
     543              :       END SELECT
     544              : 
     545           22 :    END SUBROUTINE qs_scaling_dftd2
     546              : 
     547              : ! **************************************************************************************************
     548              : !> \brief ...
     549              : !> \param s6 ...
     550              : !> \param sr6 ...
     551              : !> \param s8 ...
     552              : !> \param ref_functional ...
     553              : ! **************************************************************************************************
     554           56 :    SUBROUTINE qs_scaling_dftd3(s6, sr6, s8, ref_functional)
     555              : 
     556              :       REAL(KIND=dp), INTENT(inout)                       :: s6, sr6, s8
     557              :       CHARACTER(LEN=default_string_length), INTENT(in)   :: ref_functional
     558              : 
     559              :       CHARACTER(LEN=default_string_length)               :: functional
     560              : 
     561           56 :       functional = ref_functional
     562           56 :       CALL uppercase(functional)
     563              :       ! values for different functionals from:
     564              :       ! https://www.chemie.uni-bonn.de/grimme/de/software/dft-d3
     565              :       ! L. Goerigk et al. PCCP 2017, 32147-32744, SI
     566           56 :       SELECT CASE (TRIM(functional))
     567              :       CASE DEFAULT
     568              :          ! unknown functional
     569            0 :          CPABORT("No DFT-D3 values available for this functional:"//TRIM(ref_functional))
     570              :       CASE ("B1B95")
     571            0 :          s6 = 1.000_dp
     572            0 :          sr6 = 1.613_dp
     573            0 :          s8 = 1.868_dp
     574              :       CASE ("B2GPPLYP")
     575              :          ! L. Goerigk and S. Grimme
     576              :          ! J. Chem. Theory Comput. 2011, 7, 291-309; doi:10.1021/ct100466k
     577            0 :          s6 = 0.56_dp
     578            0 :          sr6 = 1.586_dp
     579            0 :          s8 = 0.760_dp
     580              :       CASE ("B2PLYP")
     581              :          ! L. Goerigk and S. Grimme
     582              :          ! J. Chem. Theory Comput. 2011, 7, 291-309; doi:10.1021/ct100466k
     583            2 :          s6 = 0.64_dp
     584            2 :          sr6 = 1.427_dp
     585            2 :          s8 = 1.022_dp
     586              :       CASE ("DSD-BLYP")
     587              :          ! L. Goerigk and S. Grimme
     588              :          ! J. Chem. Theory Comput. 2011, 7, 291-309; doi:10.1021/ct100466k
     589            0 :          s6 = 0.50_dp
     590            0 :          sr6 = 1.569_dp
     591            0 :          s8 = 0.705_dp
     592              :       CASE ("B3LYP")
     593              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     594              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     595            2 :          s6 = 1.000_dp
     596            2 :          sr6 = 1.261_dp
     597            2 :          s8 = 1.703_dp
     598              :       CASE ("B97-D")
     599              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     600              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     601            0 :          s6 = 1.000_dp
     602            0 :          sr6 = 0.892_dp
     603            0 :          s8 = 0.909_dp
     604              :       CASE ("BHLYP")
     605            0 :          s6 = 1.000_dp
     606            0 :          sr6 = 1.370_dp
     607            0 :          s8 = 1.442_dp
     608              :       CASE ("BLYP")
     609              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     610              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     611            2 :          s6 = 1.000_dp
     612            2 :          sr6 = 1.094_dp
     613            2 :          s8 = 1.682_dp
     614              :       CASE ("BP86")
     615              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     616              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     617            2 :          s6 = 1.000_dp
     618            2 :          sr6 = 1.139_dp
     619            2 :          s8 = 1.683_dp
     620              :       CASE ("BPBE")
     621            0 :          s6 = 1.000_dp
     622            0 :          sr6 = 1.087_dp
     623            0 :          s8 = 2.033_dp
     624              :       CASE ("MPWLYP")
     625            0 :          s6 = 1.000_dp
     626            0 :          sr6 = 1.239_dp
     627            0 :          s8 = 1.098_dp
     628              :       CASE ("PBE")
     629              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     630              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     631           44 :          s6 = 1.000_dp
     632           44 :          sr6 = 1.217_dp
     633           44 :          s8 = 0.722_dp
     634              :       CASE ("PBEHPBE")
     635            0 :          s6 = 1.000_dp
     636            0 :          sr6 = 1.5703_dp
     637            0 :          s8 = 1.4010_dp
     638              :       CASE ("PBE0")
     639              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     640              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     641            2 :          s6 = 1.000_dp
     642            2 :          sr6 = 1.287_dp
     643            2 :          s8 = 0.928_dp
     644              :       CASE ("PW6B95")
     645              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     646              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     647            0 :          s6 = 1.000_dp
     648            0 :          sr6 = 1.532_dp
     649            0 :          s8 = 0.862_dp
     650              :       CASE ("PWB6K")
     651            0 :          s6 = 1.000_dp
     652            0 :          sr6 = 1.660_dp
     653            0 :          s8 = 0.550_dp
     654              :       CASE ("REVPBE")
     655              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     656              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     657            0 :          s6 = 1.000_dp
     658            0 :          sr6 = 0.923_dp
     659            0 :          s8 = 1.010_dp
     660              :       CASE ("RPBE")
     661            0 :          s6 = 1.000_dp
     662            0 :          sr6 = 0.872_dp
     663            0 :          s8 = 0.514_dp
     664              :       CASE ("TPSS")
     665              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     666              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     667            2 :          s6 = 1.000_dp
     668            2 :          sr6 = 1.166_dp
     669            2 :          s8 = 1.105_dp
     670              :       CASE ("TPSS0")
     671              :          ! S. Grimme, J. Antony, S. Ehrlich, and H. Krieg
     672              :          ! J. Chem. Phys. 132,154104 (2010); doi:10.1063/1.3382344
     673            0 :          s6 = 1.000_dp
     674            0 :          sr6 = 1.252_dp
     675            0 :          s8 = 1.242_dp
     676              :       CASE ("TPSSH")
     677            0 :          s6 = 1.000_dp
     678            0 :          sr6 = 1.223_dp
     679            0 :          s8 = 1.219_dp
     680              :       CASE ("B1LYP")
     681            0 :          s6 = 1.000_dp
     682            0 :          sr6 = 1.3725_dp
     683            0 :          s8 = 1.9467_dp
     684              :       CASE ("B1P86")
     685            0 :          s6 = 1.000_dp
     686            0 :          sr6 = 1.1815_dp
     687            0 :          s8 = 1.1209_dp
     688              :       CASE ("B3P86")
     689            0 :          s6 = 1.000_dp
     690            0 :          sr6 = 1.1897_dp
     691            0 :          s8 = 1.1961_dp
     692              :       CASE ("B3PW91")
     693            0 :          s6 = 1.000_dp
     694            0 :          sr6 = 1.176_dp
     695            0 :          s8 = 1.775_dp
     696              :       CASE ("BMK")
     697            0 :          s6 = 1.000_dp
     698            0 :          sr6 = 1.931_dp
     699            0 :          s8 = 2.168_dp
     700              :       CASE ("CAMB3LYP")
     701            0 :          s6 = 1.000_dp
     702            0 :          sr6 = 1.378_dp
     703            0 :          s8 = 1.217_dp
     704              :       CASE ("LCWPBE")
     705            0 :          s6 = 1.000_dp
     706            0 :          sr6 = 1.355_dp
     707            0 :          s8 = 1.279_dp
     708              :       CASE ("M052X")
     709            0 :          s6 = 1.000_dp
     710            0 :          sr6 = 1.417_dp
     711            0 :          s8 = 0.000_dp
     712              :       CASE ("M05")
     713            0 :          s6 = 1.000_dp
     714            0 :          sr6 = 1.373_dp
     715            0 :          s8 = 0.595_dp
     716              :       CASE ("M062X")
     717            0 :          s6 = 1.000_dp
     718            0 :          sr6 = 1.619_dp
     719            0 :          s8 = 0.000_dp
     720              :       CASE ("M06HF")
     721            0 :          s6 = 1.000_dp
     722            0 :          sr6 = 1.446_dp
     723            0 :          s8 = 0.000_dp
     724              :       CASE ("M06L")
     725            0 :          s6 = 1.000_dp
     726            0 :          sr6 = 1.581_dp
     727            0 :          s8 = 0.000_dp
     728              :       CASE ("M06N")
     729            0 :          s6 = 1.000_dp
     730            0 :          sr6 = 1.325_dp
     731            0 :          s8 = 0.000_dp
     732              :       CASE ("HCTH120")
     733            0 :          s6 = 1.000_dp
     734            0 :          sr6 = 1.221_dp
     735            0 :          s8 = 1.206_dp
     736              :       CASE ("HCTH407")
     737            0 :          s6 = 1.000_dp
     738            0 :          sr6 = 4.0426_dp
     739            0 :          s8 = 2.7694_dp
     740              :       CASE ("MPW2PLYP")
     741            0 :          s6 = 1.000_dp
     742            0 :          sr6 = 1.5527_dp
     743            0 :          s8 = 0.7529_dp
     744              :       CASE ("PKZB")
     745            0 :          s6 = 1.000_dp
     746            0 :          sr6 = 0.6327_dp
     747            0 :          s8 = 0.000_dp
     748              :       CASE ("PTPSS")
     749            0 :          s6 = 0.750_dp
     750            0 :          sr6 = 1.541_dp
     751            0 :          s8 = 0.879_dp
     752              :       CASE ("PWPB95")
     753            0 :          s6 = 0.820_dp
     754            0 :          sr6 = 1.557_dp
     755            0 :          s8 = 0.705_dp
     756              :       CASE ("OLYP")
     757            0 :          s6 = 1.000_dp
     758            0 :          sr6 = 0.806_dp
     759            0 :          s8 = 1.764_dp
     760              :       CASE ("OPBE")
     761            0 :          s6 = 1.000_dp
     762            0 :          sr6 = 0.837_dp
     763            0 :          s8 = 2.055_dp
     764              :       CASE ("OTPSS")
     765            0 :          s6 = 1.000_dp
     766            0 :          sr6 = 1.128_dp
     767            0 :          s8 = 1.494_dp
     768              :       CASE ("PBE1KCIS")
     769            0 :          s6 = 1.000_dp
     770            0 :          sr6 = 3.6355_dp
     771            0 :          s8 = 1.7934_dp
     772              :       CASE ("PBE38")
     773            0 :          s6 = 1.000_dp
     774            0 :          sr6 = 1.333_dp
     775            0 :          s8 = 0.998_dp
     776              :       CASE ("PBEH1PBE")
     777            0 :          s6 = 1.000_dp
     778            0 :          sr6 = 1.3719_dp
     779            0 :          s8 = 1.0430_dp
     780              :       CASE ("PBESOL")
     781            0 :          s6 = 1.000_dp
     782            0 :          sr6 = 1.345_dp
     783            0 :          s8 = 0.612_dp
     784              :       CASE ("REVSSB")
     785            0 :          s6 = 1.000_dp
     786            0 :          sr6 = 1.221_dp
     787            0 :          s8 = 0.560_dp
     788              :       CASE ("REVTPSS")
     789            0 :          s6 = 1.000_dp
     790            0 :          sr6 = 1.3491_dp
     791            0 :          s8 = 1.3666_dp
     792              :       CASE ("SSB")
     793            0 :          s6 = 1.000_dp
     794            0 :          sr6 = 1.215_dp
     795            0 :          s8 = 0.663_dp
     796              :       CASE ("B97-1")
     797            0 :          s6 = 1.000_dp
     798            0 :          sr6 = 3.7924_dp
     799            0 :          s8 = 1.6418_dp
     800              :       CASE ("B97-2")
     801            0 :          s6 = 1.000_dp
     802            0 :          sr6 = 1.7066_dp
     803            0 :          s8 = 2.4661_dp
     804              :       CASE ("B98")
     805            0 :          s6 = 1.000_dp
     806            0 :          sr6 = 2.6895_dp
     807            0 :          s8 = 1.9078_dp
     808              :       CASE ("BOP")
     809            0 :          s6 = 1.000_dp
     810            0 :          sr6 = 0.929_dp
     811            0 :          s8 = 1.975_dp
     812              :       CASE ("HISS")
     813            0 :          s6 = 1.000_dp
     814            0 :          sr6 = 1.3338_dp
     815            0 :          s8 = 0.7615_dp
     816              :       CASE ("HSE03")
     817            0 :          s6 = 1.000_dp
     818            0 :          sr6 = 1.3944_dp
     819            0 :          s8 = 1.0156_dp
     820              :       CASE ("HSE06")
     821            0 :          s6 = 1.000_dp
     822            0 :          sr6 = 1.129_dp
     823            0 :          s8 = 0.109_dp
     824              :       CASE ("M08HX")
     825            0 :          s6 = 1.000_dp
     826            0 :          sr6 = 1.6247_dp
     827            0 :          s8 = 0.000_dp
     828              :       CASE ("MN15L")
     829            0 :          s6 = 1.000_dp
     830            0 :          sr6 = 3.3388_dp
     831            0 :          s8 = 0.000_dp
     832              :       CASE ("MPWPW91")
     833            0 :          s6 = 1.0000_dp
     834            0 :          sr6 = 1.3725_dp
     835            0 :          s8 = 1.9467_dp
     836              :       CASE ("MPW1B95")
     837            0 :          s6 = 1.000_dp
     838            0 :          sr6 = 1.605_dp
     839            0 :          s8 = 1.118_dp
     840              :       CASE ("MPW1KCIS")
     841            0 :          s6 = 1.000_dp
     842            0 :          sr6 = 1.7231_dp
     843            0 :          s8 = 2.2917_dp
     844              :       CASE ("MPW1LYP")
     845            0 :          s6 = 1.000_dp
     846            0 :          sr6 = 2.0512_dp
     847            0 :          s8 = 1.9529_dp
     848              :       CASE ("MPW1PW91")
     849            0 :          s6 = 1.000_dp
     850            0 :          sr6 = 1.2892_dp
     851            0 :          s8 = 1.4758_dp
     852              :       CASE ("MPWB1K")
     853            0 :          s6 = 1.000_dp
     854            0 :          sr6 = 1.671_dp
     855            0 :          s8 = 1.061_dp
     856              :       CASE ("MPWKCIS1K")
     857            0 :          s6 = 1.000_dp
     858            0 :          sr6 = 1.4853_dp
     859            0 :          s8 = 1.7553_dp
     860              :       CASE ("O3LYP")
     861            0 :          s6 = 1.000_dp
     862            0 :          sr6 = 1.4060_dp
     863            0 :          s8 = 1.8058_dp
     864              :       CASE ("PW1PW")
     865            0 :          s6 = 1.000_dp
     866            0 :          sr6 = 1.4968_dp
     867            0 :          s8 = 1.1786_dp
     868              :       CASE ("PW91P86")
     869            0 :          s6 = 1.0000_dp
     870            0 :          sr6 = 2.1040_dp
     871            0 :          s8 = 0.8747_dp
     872              :       CASE ("REVPBE0")
     873            0 :          s6 = 1.000_dp
     874            0 :          sr6 = 0.949_dp
     875            0 :          s8 = 0.792_dp
     876              :       CASE ("REVPBE38")
     877            0 :          s6 = 1.000_dp
     878            0 :          sr6 = 1.021_dp
     879            0 :          s8 = 0.862_dp
     880              :       CASE ("REVTPSSh")
     881            0 :          s6 = 1.000_dp
     882            0 :          sr6 = 1.3224_dp
     883            0 :          s8 = 1.2504_dp
     884              :       CASE ("REVTPSS0")
     885            0 :          s6 = 1.000_dp
     886            0 :          sr6 = 1.2881_dp
     887            0 :          s8 = 1.0649_dp
     888              :       CASE ("TPSS1KCIS")
     889            0 :          s6 = 1.000_dp
     890            0 :          sr6 = 1.7729_dp
     891            0 :          s8 = 2.0902_dp
     892              :       CASE ("THCTHHYB")
     893            0 :          s6 = 1.000_dp
     894            0 :          sr6 = 1.5001_dp
     895            0 :          s8 = 1.6302_dp
     896              :       CASE ("RPW86PBE")
     897            0 :          s6 = 1.000_dp
     898            0 :          sr6 = 1.224_dp
     899            0 :          s8 = 0.901_dp
     900              :       CASE ("SCAN")
     901            0 :          s6 = 1.000_dp
     902            0 :          sr6 = 1.324_dp
     903            0 :          s8 = 0.000_dp
     904              :       CASE ("THCTH")
     905            0 :          s6 = 1.000_dp
     906            0 :          sr6 = 0.932_dp
     907            0 :          s8 = 0.5662_dp
     908              :       CASE ("XLYP")
     909            0 :          s6 = 1.0000_dp
     910            0 :          sr6 = 0.9384_dp
     911            0 :          s8 = 0.7447_dp
     912              :       CASE ("X3LYP")
     913            0 :          s6 = 1.000_dp
     914            0 :          sr6 = 1.0000_dp
     915           56 :          s8 = 0.2990_dp
     916              :       END SELECT
     917              : 
     918           56 :    END SUBROUTINE qs_scaling_dftd3
     919              : 
     920              : ! **************************************************************************************************
     921              : !> \brief ...
     922              : !> \param s6 ...
     923              : !> \param a1 ...
     924              : !> \param s8 ...
     925              : !> \param a2 ...
     926              : !> \param ref_functional ...
     927              : ! **************************************************************************************************
     928           36 :    SUBROUTINE qs_scaling_dftd3bj(s6, a1, s8, a2, ref_functional)
     929              :       REAL(KIND=dp), INTENT(inout)                       :: s6, a1, s8, a2
     930              :       CHARACTER(LEN=default_string_length), INTENT(in)   :: ref_functional
     931              : 
     932              :       CHARACTER(LEN=default_string_length)               :: functional
     933              : 
     934           36 :       functional = ref_functional
     935           36 :       CALL uppercase(functional)
     936              : 
     937              :       ! values for different functionals from:
     938              :       ! http://www.thch.uni-bonn.de/tc/downloads/DFT-D3/functionalsbj.html
     939              :       ! L. Goerigk et al. PCCP 2017, 32147-32744, SI
     940           36 :       SELECT CASE (TRIM(functional))
     941              :       CASE DEFAULT
     942              :          ! unknown functional
     943            0 :          CPABORT("No DFT-D3(BJ) values available for this functional:"//TRIM(functional))
     944              :       CASE ("B1B95")
     945            0 :          s6 = 1.0000_dp
     946            0 :          a1 = 0.2092_dp
     947            0 :          s8 = 1.4507_dp
     948            0 :          a2 = 5.5545_dp
     949              :       CASE ("B2GPPLYP")
     950            0 :          s6 = 0.5600_dp
     951            0 :          a1 = 0.0000_dp
     952            0 :          s8 = 0.2597_dp
     953            0 :          a2 = 6.3332_dp
     954              :       CASE ("B3PW91")
     955            0 :          s6 = 1.0000_dp
     956            0 :          a1 = 0.4312_dp
     957            0 :          s8 = 2.8524_dp
     958            0 :          a2 = 4.4693_dp
     959              :       CASE ("BHLYP")
     960            0 :          s6 = 1.0000_dp
     961            0 :          a1 = 0.2793_dp
     962            0 :          s8 = 1.0354_dp
     963            0 :          a2 = 4.9615_dp
     964              :       CASE ("BMK")
     965            0 :          s6 = 1.0000_dp
     966            0 :          a1 = 0.1940_dp
     967            0 :          s8 = 2.0860_dp
     968            0 :          a2 = 5.9197_dp
     969              :       CASE ("BOP")
     970            0 :          s6 = 1.0000_dp
     971            0 :          a1 = 0.4870_dp
     972            0 :          s8 = 3.2950_dp
     973            0 :          a2 = 3.5043_dp
     974              :       CASE ("BPBE")
     975            0 :          s6 = 1.0000_dp
     976            0 :          a1 = 0.4567_dp
     977            0 :          s8 = 4.0728_dp
     978            0 :          a2 = 4.3908_dp
     979              :       CASE ("B97-3C")
     980            4 :          s6 = 1.0000_dp
     981            4 :          a1 = 0.3700_dp
     982            4 :          s8 = 1.5000_dp
     983            4 :          a2 = 4.1000_dp
     984              :       CASE ("CAMB3LYP")
     985            0 :          s6 = 1.0000_dp
     986            0 :          a1 = 0.3708_dp
     987            0 :          s8 = 2.0674_dp
     988            0 :          a2 = 5.4743_dp
     989              :       CASE ("DSDBLYP")
     990            0 :          s6 = 0.5000_dp
     991            0 :          a1 = 0.0000_dp
     992            0 :          s8 = 0.2130_dp
     993            0 :          a2 = 6.0519_dp
     994              :       CASE ("DSDPBEP86")
     995            0 :          s6 = 0.4180_dp
     996            0 :          a1 = 0.0000_dp
     997            0 :          s8 = 0.0000_dp
     998            0 :          a2 = 5.6500_dp
     999              :       CASE ("DSDPBEB95")
    1000            0 :          s6 = 0.6100_dp
    1001            0 :          a1 = 0.0000_dp
    1002            0 :          s8 = 0.0000_dp
    1003            0 :          a2 = 6.2000_dp
    1004              :       CASE ("LCWPBE")
    1005            0 :          s6 = 1.0000_dp
    1006            0 :          a1 = 0.3919_dp
    1007            0 :          s8 = 1.8541_dp
    1008            0 :          a2 = 5.0897_dp
    1009              :       CASE ("LCWhPBE")
    1010            0 :          s6 = 1.0000_dp
    1011            0 :          a1 = 0.2746_dp
    1012            0 :          s8 = 1.1908_dp
    1013            0 :          a2 = 5.3157_dp
    1014              :       CASE ("MPW1B95")
    1015            0 :          s6 = 1.0000_dp
    1016            0 :          a1 = 0.1955_dp
    1017            0 :          s8 = 1.0508_dp
    1018            0 :          a2 = 6.4177_dp
    1019              :       CASE ("MPW2PLYP")
    1020            0 :          s6 = 0.6600_dp
    1021            0 :          a1 = 0.4105_dp
    1022            0 :          s8 = 0.6223_dp
    1023            0 :          a2 = 5.0136_dp
    1024              :       CASE ("MPWB1K")
    1025            0 :          s6 = 1.0000_dp
    1026            0 :          a1 = 0.1474_dp
    1027            0 :          s8 = 0.9499_dp
    1028            0 :          a2 = 6.6223_dp
    1029              :       CASE ("MPWLYP")
    1030            0 :          s6 = 1.0000_dp
    1031            0 :          a1 = 0.4831_dp
    1032            0 :          s8 = 2.0077_dp
    1033            0 :          a2 = 4.5323_dp
    1034              :       CASE ("OLYP")
    1035            0 :          s6 = 1.0000_dp
    1036            0 :          a1 = 0.5299_dp
    1037            0 :          s8 = 2.6205_dp
    1038            0 :          a2 = 2.8065_dp
    1039              :       CASE ("OPBE")
    1040            0 :          s6 = 1.0000_dp
    1041            0 :          a1 = 0.5512_dp
    1042            0 :          s8 = 3.3816_dp
    1043            0 :          a2 = 2.9444_dp
    1044              :       CASE ("OTPSS")
    1045            0 :          s6 = 1.0000_dp
    1046            0 :          a1 = 0.4634_dp
    1047            0 :          s8 = 2.7495_dp
    1048            0 :          a2 = 4.3153_dp
    1049              :       CASE ("PBE38")
    1050            0 :          s6 = 1.0000_dp
    1051            0 :          a1 = 0.3995_dp
    1052            0 :          s8 = 1.4623_dp
    1053            0 :          a2 = 5.1405_dp
    1054              :       CASE ("PBEsol")
    1055            0 :          s6 = 1.0000_dp
    1056            0 :          a1 = 0.4466_dp
    1057            0 :          s8 = 2.9491_dp
    1058            0 :          a2 = 6.1742_dp
    1059              :       CASE ("PTPSS")
    1060            0 :          s6 = 0.7500_dp
    1061            0 :          a1 = 0.0000_dp
    1062            0 :          s8 = 0.2804_dp
    1063            0 :          a2 = 6.5745_dp
    1064              :       CASE ("PWB6K")
    1065            0 :          s6 = 1.0000_dp
    1066            0 :          a1 = 0.1805_dp
    1067            0 :          s8 = 0.9383_dp
    1068            0 :          a2 = 7.7627_dp
    1069              :       CASE ("revSSB")
    1070            0 :          s6 = 1.0000_dp
    1071            0 :          a1 = 0.4720_dp
    1072            0 :          s8 = 0.4389_dp
    1073            0 :          a2 = 4.0986_dp
    1074              :       CASE ("SSB")
    1075            0 :          s6 = 1.0000_dp
    1076            0 :          a1 = -0.0952_dp
    1077            0 :          s8 = -0.1744_dp
    1078            0 :          a2 = 5.2170_dp
    1079              :       CASE ("TPSSh")
    1080            0 :          s6 = 1.0000_dp
    1081            0 :          a1 = 0.4529_dp
    1082            0 :          s8 = 2.2382_dp
    1083            0 :          a2 = 4.6550_dp
    1084              :       CASE ("HCTH120")
    1085            0 :          s6 = 1.0000_dp
    1086            0 :          a1 = 0.3563_dp
    1087            0 :          s8 = 1.0821_dp
    1088            0 :          a2 = 4.3359_dp
    1089              :       CASE ("B2PLYP")
    1090            0 :          s6 = 0.6400_dp
    1091            0 :          a1 = 0.3065_dp
    1092            0 :          s8 = 0.9147_dp
    1093            0 :          a2 = 5.0570_dp
    1094              :       CASE ("B1LYP")
    1095            0 :          s6 = 1.0000_dp
    1096            0 :          a1 = 0.1986_dp
    1097            0 :          s8 = 2.1167_dp
    1098            0 :          a2 = 5.3875_dp
    1099              :       CASE ("B1P86")
    1100            0 :          s6 = 1.0000_dp
    1101            0 :          a1 = 0.4724_dp
    1102            0 :          s8 = 3.5681_dp
    1103            0 :          a2 = 4.9858_dp
    1104              :       CASE ("B3LYP", "SKALA", "SKALA-1.1", "SKALA1.1")
    1105            4 :          s6 = 1.0000_dp
    1106            4 :          a1 = 0.3981_dp
    1107            4 :          s8 = 1.9889_dp
    1108            4 :          a2 = 4.4211_dp
    1109              :       CASE ("B3P86")
    1110            0 :          s6 = 1.0000_dp
    1111            0 :          a1 = 0.4601_dp
    1112            0 :          s8 = 3.3211_dp
    1113            0 :          a2 = 4.9294_dp
    1114              :       CASE ("B97-1")
    1115            0 :          s6 = 1.0000_dp
    1116            0 :          a1 = 0.0000_dp
    1117            0 :          s8 = 0.4814_dp
    1118            0 :          a2 = 6.2279_dp
    1119              :       CASE ("B97-2")
    1120            0 :          s6 = 1.0000_dp
    1121            0 :          a1 = 0.0000_dp
    1122            0 :          s8 = 0.9448_dp
    1123            0 :          a2 = 5.4603_dp
    1124              :       CASE ("B97-D")
    1125            0 :          s6 = 1.0000_dp
    1126            0 :          a1 = 0.5545_dp
    1127            0 :          s8 = 2.2609_dp
    1128            0 :          a2 = 3.2297_dp
    1129              :       CASE ("B98")
    1130            0 :          s6 = 1.0000_dp
    1131            0 :          a1 = 0.0000_dp
    1132            0 :          s8 = 0.7086_dp
    1133            0 :          a2 = 6.0672_dp
    1134              :       CASE ("BLYP")
    1135            6 :          s6 = 1.0000_dp
    1136            6 :          a1 = 0.4298_dp
    1137            6 :          s8 = 2.6996_dp
    1138            6 :          a2 = 4.2359_dp
    1139              :       CASE ("BP86")
    1140            2 :          s6 = 1.0000_dp
    1141            2 :          a1 = 0.3946_dp
    1142            2 :          s8 = 3.2822_dp
    1143            2 :          a2 = 4.8516_dp
    1144              :       CASE ("DSD-BLYP")
    1145            0 :          s6 = 0.5000_dp
    1146            0 :          a1 = 0.0000_dp
    1147            0 :          s8 = 0.2130_dp
    1148            0 :          a2 = 6.0519_dp
    1149              :       CASE ("HCTH407")
    1150            0 :          s6 = 1.0000_dp
    1151            0 :          a1 = 0.0000_dp
    1152            0 :          s8 = 0.6490_dp
    1153            0 :          a2 = 4.8162_dp
    1154              :       CASE ("HISS")
    1155            0 :          s6 = 1.0000_dp
    1156            0 :          a1 = 0.0000_dp
    1157            0 :          s8 = 1.6112_dp
    1158            0 :          a2 = 7.3539_dp
    1159              :       CASE ("HSE03")
    1160            0 :          s6 = 1.0000_dp
    1161            0 :          a1 = 0.0000_dp
    1162            0 :          s8 = 1.1243_dp
    1163            0 :          a2 = 6.8889_dp
    1164              :       CASE ("HSE06")
    1165            0 :          s6 = 1.0000_dp
    1166            0 :          a1 = 0.3830_dp
    1167            0 :          s8 = 2.3100_dp
    1168            0 :          a2 = 5.6850_dp
    1169              :       CASE ("M11")
    1170            0 :          s6 = 1.0000_dp
    1171            0 :          a1 = 0.0000_dp
    1172            0 :          s8 = 2.8112_dp
    1173            0 :          a2 = 10.1389_dp
    1174              :       CASE ("MN12SX")
    1175            0 :          s6 = 1.0000_dp
    1176            0 :          a1 = 0.0983_dp
    1177            0 :          s8 = 1.1674_dp
    1178            0 :          a2 = 8.0259_dp
    1179              :       CASE ("MN15")
    1180            0 :          s6 = 1.0000_dp
    1181            0 :          a1 = 2.0971_dp
    1182            0 :          s8 = 0.7862_dp
    1183            0 :          a2 = 7.5923_dp
    1184              :       CASE ("mPWPW91")
    1185            0 :          s6 = 1.0000_dp
    1186            0 :          a1 = 0.3168_dp
    1187            0 :          s8 = 1.7974_dp
    1188            0 :          a2 = 4.7732_dp
    1189              :       CASE ("MPW1PW91")
    1190            0 :          s6 = 1.0000_dp
    1191            0 :          a1 = 0.3342_dp
    1192            0 :          s8 = 1.8744_dp
    1193            0 :          a2 = 4.9819_dp
    1194              :       CASE ("MPW1KCIS")
    1195            0 :          s6 = 1.0000_dp
    1196            0 :          a1 = 0.0576_dp
    1197            0 :          s8 = 1.0893_dp
    1198            0 :          a2 = 5.5314_dp
    1199              :       CASE ("MPWKCIS1K")
    1200            0 :          s6 = 1.0000_dp
    1201            0 :          a1 = 0.0855_dp
    1202            0 :          s8 = 1.2875_dp
    1203            0 :          a2 = 5.8961_dp
    1204              :       CASE ("N12SX")
    1205            0 :          s6 = 1.0000_dp
    1206            0 :          a1 = 0.3283_dp
    1207            0 :          s8 = 2.4900_dp
    1208            0 :          a2 = 5.7898_dp
    1209              :       CASE ("O3LYP")
    1210            0 :          s6 = 1.0000_dp
    1211            0 :          a1 = 0.0963_dp
    1212            0 :          s8 = 1.8171_dp
    1213            0 :          a2 = 5.9940_dp
    1214              :       CASE ("PBE0")
    1215            2 :          s6 = 1.0000_dp
    1216            2 :          a1 = 0.4145_dp
    1217            2 :          s8 = 1.2177_dp
    1218            2 :          a2 = 4.8593_dp
    1219              :       CASE ("PBE")
    1220           16 :          s6 = 1.0000_dp
    1221           16 :          a1 = 0.4289_dp
    1222           16 :          s8 = 0.7875_dp
    1223           16 :          a2 = 4.4407_dp
    1224              :       CASE ("PBEhPBE")
    1225            0 :          s6 = 1.0000_dp
    1226            0 :          a1 = 0.0000_dp
    1227            0 :          s8 = 1.1152_dp
    1228            0 :          a2 = 6.7184_dp
    1229              :       CASE ("PBEh1PBE")
    1230            0 :          s6 = 1.0000_dp
    1231            0 :          a1 = 0.0000_dp
    1232            0 :          s8 = 1.4877_dp
    1233            0 :          a2 = 7.0385_dp
    1234              :       CASE ("PBE1KCIS")
    1235            0 :          s6 = 1.0000_dp
    1236            0 :          a1 = 0.0000_dp
    1237            0 :          s8 = 0.7688_dp
    1238            0 :          a2 = 6.2794_dp
    1239              :       CASE ("PW6B95")
    1240            0 :          s6 = 1.0000_dp
    1241            0 :          a1 = 0.2076_dp
    1242            0 :          s8 = 0.7257_dp
    1243            0 :          a2 = 6.3750_dp
    1244              :       CASE ("PWPB95")
    1245            0 :          s6 = 0.8200_dp
    1246            0 :          a1 = 0.0000_dp
    1247            0 :          s8 = 0.2904_dp
    1248            0 :          a2 = 7.3141_dp
    1249              :       CASE ("revPBE0")
    1250            0 :          s6 = 1.0000_dp
    1251            0 :          a1 = 0.4679_dp
    1252            0 :          s8 = 1.7588_dp
    1253            0 :          a2 = 3.7619_dp
    1254              :       CASE ("revPBE38")
    1255            0 :          s6 = 1.0000_dp
    1256            0 :          a1 = 0.4309_dp
    1257            0 :          s8 = 1.4760_dp
    1258            0 :          a2 = 3.9446_dp
    1259              :       CASE ("revPBE")
    1260            0 :          s6 = 1.0000_dp
    1261            0 :          a1 = 0.5238_dp
    1262            0 :          s8 = 2.3550_dp
    1263            0 :          a2 = 3.5016_dp
    1264              :       CASE ("revTPSS")
    1265            0 :          s6 = 1.0000_dp
    1266            0 :          a1 = 0.4426_dp
    1267            0 :          s8 = 1.4023_dp
    1268            0 :          a2 = 4.4723_dp
    1269              :       CASE ("revTPSS0")
    1270            0 :          s6 = 1.0000_dp
    1271            0 :          a1 = 0.2218_dp
    1272            0 :          s8 = 1.6151_dp
    1273            0 :          a2 = 5.7985_dp
    1274              :       CASE ("revTPSSh")
    1275            0 :          s6 = 1.0000_dp
    1276            0 :          a1 = 0.2660_dp
    1277            0 :          s8 = 1.4076_dp
    1278            0 :          a2 = 5.3761_dp
    1279              :       CASE ("RPBE")
    1280            0 :          s6 = 1.0000_dp
    1281            0 :          a1 = 0.1820_dp
    1282            0 :          s8 = 0.8318_dp
    1283            0 :          a2 = 4.0094_dp
    1284              :       CASE ("RPW86PBE")
    1285            0 :          s6 = 1.0000_dp
    1286            0 :          a1 = 0.4613_dp
    1287            0 :          s8 = 1.3845_dp
    1288            0 :          a2 = 4.5062_dp
    1289              :       CASE ("SCAN")
    1290            0 :          s6 = 1.0000_dp
    1291            0 :          a1 = 0.538_dp
    1292            0 :          s8 = 0.0000_dp
    1293            0 :          a2 = 5.420_dp
    1294              :       CASE ("SOGGA11X")
    1295            0 :          s6 = 1.0000_dp
    1296            0 :          a1 = 0.1330_dp
    1297            0 :          s8 = 1.1426_dp
    1298            0 :          a2 = 5.7381_dp
    1299              :       CASE ("TPSS0")
    1300            0 :          s6 = 1.0000_dp
    1301            0 :          a1 = 0.3768_dp
    1302            0 :          s8 = 1.2576_dp
    1303            0 :          a2 = 4.5865_dp
    1304              :       CASE ("TPSS1KCIS")
    1305            0 :          s6 = 1.0000_dp
    1306            0 :          a1 = 0.0000_dp
    1307            0 :          s8 = 1.0542_dp
    1308            0 :          a2 = 6.0201_dp
    1309              :       CASE ("TPSS")
    1310            2 :          s6 = 1.0000_dp
    1311            2 :          a1 = 0.4535_dp
    1312            2 :          s8 = 1.9435_dp
    1313            2 :          a2 = 4.4752_dp
    1314              :       CASE ("tHCTH")
    1315            0 :          s6 = 1.0000_dp
    1316            0 :          a1 = 0.0000_dp
    1317            0 :          s8 = 1.2626_dp
    1318            0 :          a2 = 5.6162_dp
    1319              :       CASE ("tHCTHhyb")
    1320            0 :          s6 = 1.0000_dp
    1321            0 :          a1 = 0.0000_dp
    1322            0 :          s8 = 0.9585_dp
    1323            0 :          a2 = 6.2303_dp
    1324              :       CASE ("XLYP")
    1325            0 :          s6 = 1.0000_dp
    1326            0 :          a1 = 0.0809_dp
    1327            0 :          s8 = 1.5669_dp
    1328            0 :          a2 = 5.3166_dp
    1329              :       CASE ("X3LYP")
    1330            0 :          s6 = 1.0000_dp
    1331            0 :          a1 = 0.2022_dp
    1332            0 :          s8 = 1.5744_dp
    1333           36 :          a2 = 5.4184_dp
    1334              :       END SELECT
    1335              : 
    1336           36 :    END SUBROUTINE qs_scaling_dftd3bj
    1337              : 
    1338              : ! **************************************************************************************************
    1339              : !> \brief ...
    1340              : !> \param cell ...
    1341              : !> \param ncell ...
    1342              : !> \return ...
    1343              : ! **************************************************************************************************
    1344      3014448 :    FUNCTION cellhash(cell, ncell) RESULT(hash)
    1345              :       INTEGER, DIMENSION(3), INTENT(IN)                  :: cell, ncell
    1346              :       INTEGER                                            :: hash
    1347              : 
    1348              :       INTEGER                                            :: ix, iy, iz, nx, ny, nz
    1349              : 
    1350     12057792 :       CPASSERT(ALL(ABS(cell) <= ncell))
    1351              : 
    1352      3014448 :       ix = cell(1)
    1353      3014448 :       IF (ix /= 0) THEN
    1354      2582800 :          ix = 2*ABS(ix) - (1 + SIGN(1, ix))/2
    1355              :       END IF
    1356      3014448 :       iy = cell(2)
    1357      3014448 :       IF (iy /= 0) THEN
    1358      2582812 :          iy = 2*ABS(iy) - (1 + SIGN(1, iy))/2
    1359              :       END IF
    1360      3014448 :       iz = cell(3)
    1361      3014448 :       IF (iz /= 0) THEN
    1362      2582812 :          iz = 2*ABS(iz) - (1 + SIGN(1, iz))/2
    1363              :       END IF
    1364              : 
    1365      3014448 :       nx = 2*ncell(1) + 1
    1366      3014448 :       ny = 2*ncell(2) + 1
    1367      3014448 :       nz = 2*ncell(3) + 1
    1368              : 
    1369      3014448 :       hash = ix*ny*nz + iy*nz + iz + 1
    1370              : 
    1371      3014448 :    END FUNCTION cellhash
    1372              : ! **************************************************************************************************
    1373              : 
    1374              : END MODULE qs_dispersion_utils
        

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