Research Article

Predicting Flash Point of Organosilicon Compounds Using Quantitative Structure Activity Relationship Approach

Table 2

Definitions of molecular descriptors in the quantitative structure activity relationship established for prediction of flash point for organosilicon compounds.

Type of descriptorName of descriptorsDefinition

ConstitutionalNFNumber of fluorine atoms
TopologicalRandic index (order 1)
ElectrostaticMax partial charge (Zefirov) for all atom types
ElectrostaticDPSA2DPSA2 Difference in CPSAs (PPSA2-PNSA2) (Zefirov PC)
GeometricalRelative principal moment of inertia
ElectrostaticDifference (Pos-Neg) in charged part of charged surface area (MOPAC PC)