get_dispersion3 Subroutine

subroutine get_dispersion3(self, mol, trans, cutoff, rvdw, r4r2, c6, dc6dcn, &
      & energy, dEdcn, gradient, sigma)

   !> Damping parameters
   class(mzero_damping_param), intent(in) :: self

   !> Molecular structure data
   class(structure_type), intent(in) :: mol

   !> Lattice points
   real(wp), intent(in) :: trans(:, :)

   !> Real space cutoff
   real(wp), intent(in) :: cutoff

   !> Van-der-Waals radii for damping function
   real(wp), intent(in) :: rvdw(:, :)

   !> Expectation values for C8 extrapolation
   real(wp), intent(in) :: r4r2(:)

   !> C6 coefficients for all atom pairs.
   real(wp), intent(in) :: c6(:, :)

   !> Derivative of the C6 w.r.t. the coordination number
   real(wp), intent(in), optional :: dc6dcn(:, :)

   !> Dispersion energy
   real(wp), intent(inout) :: energy(:)

   !> Derivative of the energy w.r.t. the coordination number
   real(wp), intent(inout), optional :: dEdcn(:)

   !> Dispersion gradient
   real(wp), intent(inout), optional :: gradient(:, :)

   !> Dispersion virial
   real(wp), intent(inout), optional :: sigma(:, :)

   call get_atm_dispersion(mol, trans, cutoff, self%s9, rs9, self%alp+2, &
      & rvdw, c6, dc6dcn, energy, dEdcn, gradient, sigma)

end subroutine get_dispersion3