A graphic model for calculating the properties of alkylsilanes, based on the additivity of energy contributions

Autor: V. M. Smolyakov, D. Yu. Nilov
Rok vydání: 2013
Předmět:
Zdroj: Russian Journal of Physical Chemistry A. 87:516-520
ISSN: 1531-863X
0036-0244
DOI: 10.1134/s0036024413030199
Popis: A 18-constant additive scheme for calculating the physicochemical properties of alkylsilanes is obtained, based on the transferability of subgraphs in molecular graphs of the homologic SiC n H2n + 4 series of alkylsilanes. The model considers multiple nonvalence interactions through no more than one atom and pair nonvalence interactions through no more than three skeletal atoms along a molecular chain. A linear dependence is established within the classification of the structural elements in a molecule. The enthalpies of formation Δf H° (g, 298 K) for alkylsilanes SiC n H2n + 4 not studied experimentally were calculated numerically by considering different approximations.
Databáze: OpenAIRE