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МЕХАНИЗМ ОБРАЗОВАНИЯ β-АГОСТИЧЕСКИХ СИЛИЛАМИДНЫХ КОМПЛЕКСОВ МОЛИБДЕНА. КВАНТОВО-ХИМИЧЕСКОЕ ИССЛЕДОВАНИЕ

МЕХАНИЗМ ОБРАЗОВАНИЯ β-АГОСТИЧЕСКИХ СИЛИЛАМИДНЫХ КОМПЛЕКСОВ МОЛИБДЕНА. КВАНТОВО-ХИМИЧЕСКОЕ ИССЛЕДОВАНИЕ

Abstract

Методом функционала плотности (B3PW91/6-31G(d,p)) изучен механизм реакции имидного комплекса молибдена и фенилсилана с образованием β-агостических силиламидных продуктов. Для элементарных стадий этой реакции определены энергетические и термодинамические характеристики, найдены переходные состояния и построены пути реакции минимальной энергии. Проведенное квантово-химическое моделирование показывает, что механизм реакции, включающей стадии присоединения фенилсилана и элиминирования водорода, более сложный, чем это предполагалось ранее на основе анализа экспериментальных результатов.

A reaction mechanism of Mo imido complex and phenylsilane to form β-agostic silylamido products have been studied using the density functional theory (B3PW91). Energy and thermodynamic characteristics, transition states and minimum energy pathways are found for the reaction elementary steps. The quantum chemical study performed shows that the reaction mechanism (comprising the steps of joining phenylsilane and removing hydrogen) is more complicated than previously thought on the basis of experimental data analysis.

Keywords

β-АГОСТИЧЕСКИЕ СИЛИЛAМИДНЫЕ КОМПЛЕКСЫ МОЛИБДЕНА, КВАНТОВО-ХИМИЧЕСКОЕ ИССЛЕДОВАНИЕ, ТЕОРИЯ ФУНКЦИОНАЛА ПЛОТНОСТИ, МЕХАНИЗМ, β-AGOSTIC SILYLAMIDO COMPLEXES OF MOLYBDENUM (MO)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze