Type:         Double
  Default:      true
  Definition:   If the neck descreening correction is being used, apply a smaller overlap scale
factors as the number of bonded heavy atoms increases.

Type:         Double
Default:      false
Definition:   If true, hydrogen atoms are contribute to the pairwise descreening integrals.

Type:         Double
Default:      0.3
Definition:   Offset applied to the pairwise descreening integral to improve stability at small separation.

Type:         Double
Default:      true
Definition:   If true, the descreening size of each atom is based on its force field van der Waals radius.

Type:         Boolean
Default:      true
Definition:   Flag to turn on element specific overlap scale factors for Hawkins-Cramer-Truhlar pairwise descreening.

  Type:         String
  Default:      solute
  Definition:   [SOLUTE / VDW / CONSENSUS]
The base atomic radii to use for generalized Kirkwood calculations. The default is to use solute radii,
which were fit to experimental solvation free energy differences. Alternatively, force field
specific van der Waals radii (vdw) or consensus Bondi radii (consensus) can be chosen.

Type:         Double
Default:      2.455
Definition:   The Generalized Kirkwood cross-term parameter.

Type:         Double
Default:      0.72
Definition:   The default overlap scale factor for Hawkins-Cramer-Truhlar pairwise descreening.

Type:         Double
Default:      true
Definition:   Apply a neck correction during descreening.

Type:         Double
Default:      0.1350
Definition:   The overlap scale factor to use during the descreening neck correction.

  Type:         String
  Default:      gauss-disp
  Definition:   [CAV / CAV-DISP / GAUSS-DISP / SEV-DISP / NONE ]
The non-polar contribution to the implicit solvent.

  Type:         Double
  Default:      1.0
  Definition:   The dielectric constant used for the solute(s) in generalized Kirkwood calculations.
The default of 1.0 is consistent with all solute dielectric response arising from either
polarization via induced dipoles and/or permanent dipole realignment.

  Type:         Double
  Default:      78.3
  Definition:   The dielectric constant used for the solvent in generalized Kirkwood calculations.
The default of 78.3 corresponds to water.

Type:         Double
Default:      0.0334
Definition:   The solvent pressure for nonpolar models with an explicit volume term (kcal/mol/A^3).

Type:         Double
Default:      0.080
Definition:   The cavitation surface tension coefficient (kcal/mol/A^2).

Type:         Double
Default:      0.9563
Definition:   The coefficient beta0 for tanh rescaling of descreening integrals.

Type:         Double
Default:      0.2578
Definition:   The coefficient beta1 for tanh rescaling of descreening integrals.

Type:         Double
Default:      0.0810
Definition:   The coefficient beta2 for tanh rescaling of descreening integrals.

  Type:         Double
  Default:      true
  Definition:   If the neck descreening correction is being used, apply a smaller overlap scale
factors as the number of bonded heavy atoms increases.