V. V. Belyaeva, I. P. Tsyrendorzhieva, T. A. Podgorbunskaya, V. I. Rakhlin, “The C–Br bond as a main reason for conformational isomerism”, Mendeleev Commun., 30:6 (2020), 744

Communications

The C–Br bond as a main reason for conformational isomerism

V. V. Belyaeva^a, I. P. Tsyrendorzhieva^a, T. A. Podgorbunskaya^b, V. I. Rakhlin^a

^a A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russian Federation
^b Irkutsk National Research Technical University, Irkutsk, Russian Federation

Аннотация: The conformational isomerism and orbital interactions of N-(2-bromo-2-phenylethenyl)-N,N-bis(trimethylsilyl)amine and N-(2-bromo-2-trimethylsilylethenyl)-N,N-bis(trimethylsilyl) amine were examined using NMR technique and quantum-chemical calculations. The IR criterion characterizing σ→σ* hyperconjugation is considered, and the linear dependence of σC–H→σ*C–X (X = F, Cl, Br) interaction energy on the polarizability of X is discussed.

Ключевые слова: bromohexamethyldisilazane, bromoamines, alkynes, organosilicon compounds, isomerism, hyperconjugation, orbital interactions, stretching vibration, polarizability.

Язык публикации: английский

DOI: 10.1016/j.mencom.2020.11.018

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