Spectra and structure of small ring compounds. XXXVII. Two-dimensional potential surface and barrier to interconversion for silacyclopentane

Journal of Chemical Physics - Tập 67 Số 10 - Trang 4756-4759 - 1977
J. R. Durig1, W. J. Natter1, V. F. Kalasinsky2
1Department of Chemistry, University of South Carolina, Columbia, South Carolina 29208
2Department of Chemistry, Mississippi State University, Mississippi State, Mississippi, 39762

Tóm tắt

The Raman spectrum of gaseous silacyclopentane has been recorded from 25 to 4000 cm−1. The series of Q branches observed at 264.5, 259.9, and 255.3 cm−1 have been assigned as the fundamental and hot bands of the radial vibration of a hindered pseudorotator. A two-dimensional potential surface has been determined and indicates that the interconversion between equivalent twisted forms proceeds through a puckered intermediate. The barrier of 1414 cm−1 is of the same order as that found using a one-dimensional treatment, and the two models are discussed.

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Tài liệu tham khảo

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Thông tin xuất bản

Journal of Chemical Physics

Tập 67 Số 10

4756-4759

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