tblite
Light-weight tight-binding framework
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tblite_repulsion_effective::tb_repulsion Type Reference

Container to evaluate classical repulsion interactions for the xTB Hamiltonian. More...

Inheritance diagram for tblite_repulsion_effective::tb_repulsion:
tblite_repulsion_type::repulsion_type tblite_container_type::container_type

Public Member Functions

procedure get_engrad (self, mol, cache, energies, gradient, sigma)
 Evaluate classical interaction for energy and derivatives.
 
- Public Member Functions inherited from tblite_container_type::container_type
procedure update (self, mol, cache)
 Update container cache.
 
procedure variable_info (self)
 Get information about density dependent quantities used in the energy.
 
procedure get_engrad (self, mol, cache, energies, gradient, sigma)
 Evaluate non-selfconsistent part of the interaction.
 
procedure get_energy (self, mol, cache, wfn, energies)
 Evaluate selfconsistent energy of the interaction.
 
procedure get_potential (self, mol, cache, wfn, pot)
 Evaluate charge dependent potential shift from the interaction.
 
procedure get_potential_gradient (self, mol, cache, wfn, pot)
 Evaluate gradient of charge dependent potential shift from the interaction.
 
procedure get_gradient (self, mol, cache, wfn, gradient, sigma)
 Evaluate gradient contributions from the selfconsistent interaction.
 
procedure info (self, verbosity, indent)
 Information on container.
 

Data Fields

real(wp), dimension(:, :), allocatable alpha
 Exponent for the repulsion interaction.
 
real(wp), dimension(:, :), allocatable zeff
 Effective nuclear charge.
 
real(wp), dimension(:, :), allocatable kexp
 Scaling of the repulsion exponents.
 
real(wp), dimension(:, :), allocatable rexp
 Exponent of the repulsion polynomial.
 
real(wp) cutoff = 25.0_wp
 Real-space cutoff.
 
- Data Fields inherited from tblite_container_type::container_type
character(len=:), allocatable label
 Label identifying this contribution.
 

Detailed Description

Container to evaluate classical repulsion interactions for the xTB Hamiltonian.

Member Function/Subroutine Documentation

◆ get_engrad()

procedure tblite_repulsion_effective::tb_repulsion::get_engrad ( class(tb_repulsion), intent(in) self,
type(structure_type), intent(in) mol,
type(container_cache), intent(inout) cache,
real(wp), dimension(:), intent(inout) energies,
real(wp), dimension(:, :), intent(inout), optional, contiguous gradient,
real(wp), dimension(:, :), intent(inout), optional, contiguous sigma )

Evaluate classical interaction for energy and derivatives.

Parameters
[in]selfInstance of the repulsion container
[in]molMolecular structure data
[in,out]cacheCached data between different runs
[in,out]energiesRepulsion energy
[in,out]gradientMolecular gradient of the repulsion energy
[in,out]sigmaStrain derivatives of the repulsion energy

The documentation for this type was generated from the following file: