RDKit
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class for calculation of electrostatic interaction (Coulomb energy) between probe and molecule by taking a distance-dependent dielectric into account: More...
#include <MIFDescriptors.h>
Public Member Functions | |
CoulombDielectric () | |
CoulombDielectric (const std::vector< double > &charges, const std::vector< RDGeom::Point3D > &positions, double probeCharge=1.0, bool absVal=false, double alpha=0.0, double cutoff=1.0, double epsilon=80.0, double xi=4.0) | |
constructs CoulombDielectric object from vectors of charges and positions | |
CoulombDielectric (const RDKit::ROMol &mol, int confId=-1, double probeCharge=1.0, bool absVal=false, const std::string &prop="_GasteigerCharge", double alpha=0.0, double cutoff=1.0, double epsilon=80.0, double xi=4.0) | |
constructs Coulomb object from a molecule object | |
double | operator() (double x, double y, double z, double thres) const |
returns the electrostatic interaction at point pt in the molecule's field in [kJ mol^-1] | |
class for calculation of electrostatic interaction (Coulomb energy) between probe and molecule by taking a distance-dependent dielectric into account:
Same energy term as used in GRID References: J. Med. Chem. 1985, 28, 849. J. Comp. Chem. 1983, 4, 187.
Definition at line 203 of file MIFDescriptors.h.
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inline |
Definition at line 205 of file MIFDescriptors.h.
RDMIF::CoulombDielectric::CoulombDielectric | ( | const std::vector< double > & | charges, |
const std::vector< RDGeom::Point3D > & | positions, | ||
double | probeCharge = 1.0 , |
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bool | absVal = false , |
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double | alpha = 0.0 , |
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double | cutoff = 1.0 , |
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double | epsilon = 80.0 , |
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double | xi = 4.0 |
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) |
constructs CoulombDielectric object from vectors of charges and positions
charges | vector of charges [e] |
pos | vector of postions [A] |
probeCharge | charge of probe [e] (default: 1.0) |
absVal | if true, negative (favored) values of interactions are calculated (default: false) |
alpha | softcore interaction parameter [A^2]; if zero, a minimum cutoff distance is used (default: 0.0) |
cutoff | minimum cutoff distance [A] (default: 1.0) |
epsilon | relative permittivity of solvent (default: 80.0) |
xi | relative permittivity of solute (default: 4.0) |
RDMIF::CoulombDielectric::CoulombDielectric | ( | const RDKit::ROMol & | mol, |
int | confId = -1 , |
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double | probeCharge = 1.0 , |
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bool | absVal = false , |
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const std::string & | prop = "_GasteigerCharge" , |
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double | alpha = 0.0 , |
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double | cutoff = 1.0 , |
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double | epsilon = 80.0 , |
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double | xi = 4.0 |
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) |
constructs Coulomb object from a molecule object
The molecule mol
needs to have partial charges set as property of atoms.
mol | molecule object |
confId | conformation id which is used to get positions of atoms (default=-1) |
probeCharge | charge of probe [e] (default: 1.0) |
absVal | if true, negative (favored) values of interactions are calculated (default: false) |
prop | property key for retrieving partial charges of atoms (default: "_GasteigerCharge") |
alpha | softcore interaction parameter [A^2], if zero, a minimum cutoff distance is used (default: 0.0) |
cutoff | minimum cutoff distance [A] (default: 1.0) |
epsilon | relative permittivity of solvent (default: 80.0) |
xi | relative permittivity of solute (default: 4.0) |
double RDMIF::CoulombDielectric::operator() | ( | double | x, |
double | y, | ||
double | z, | ||
double | thres | ||
) | const |
returns the electrostatic interaction at point pt
in the molecule's field in [kJ mol^-1]
x,y,z | coordinates at which the interaction is calculated |
thres | squared threshold distance |