A graphic model for calculating the properties of alkylsilanes, based on the additivity of energy contributions
Autor: | V. M. Smolyakov, D. Yu. Nilov |
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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 |
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