AtomTypeCharges 
Assigns charges to atom types.

Electronegativity 
Calculation of the electronegativity of orbitals of a molecule
by the method Gasteiger based on electronegativity is given by X = a + bq + c(q*q).

GasteigerMarsiliPartialCharges 

GasteigerPEPEPartialCharges 
The calculation of the Gasteiger (PEPE) partial charges is based on
[Saller, H., Quantitative Emperische Modelle fur Elektronische Effekte in PiSystemen und fur die Chemische Reaktivitat, 1985, ?Institute?].

InductivePartialCharges 

MMFF94PartialCharges 
The calculation of the MMFF94 partial charges.

PiElectronegativity 
Calculation of the electronegativity of orbitals of a molecule
by the method Gasteiger based on electronegativity is given by X = a + bq + c(q*q).

Polarizability 
Calculation of the polarizability of a molecule by the method of Kang and
Jhon and Gasteiger based on [ Kang, Y.K. and Jhon, M.S.. Theoretica Chimica Acta. 1982. 61] and [ Gasteiger, J. and Hutchings, M.G.. J. Amer. Chem. Soc.. 1984. 106]
Limitations in parameterization of atoms:
H, Csp3, Csp2, Csp2arom, Csp3, Nsp3, Nsp2, Nsp3,
P, Osp3 and Osp2.

StabilizationCharges 
The stabilization of the positive and the negative charge
obtained (e.g in the polar breaking of a bond) is calculated from the sigma and
lone pairelectronegativity values of the atoms that are in conjugation to the atoms
obtaining the charges.
