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Spectra and structure of silicon containing compounds. 13 —infrared and Raman spectra of 1,1‐dimethyl‐1‐silacyclopentane
Author(s) -
Durig J. R.,
JohnsonStreusand M.
Publication year - 1980
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250090112
Subject(s) - raman spectroscopy , infrared , chemistry , spectral line , bending , infrared spectroscopy , ring (chemistry) , molecular physics , silicon , hot band , depolarization , symmetry (geometry) , molecular vibration , analytical chemistry (journal) , computational chemistry , materials science , optics , physics , organic chemistry , geometry , medicine , mathematics , astronomy , composite material , endocrinology
The infrared spectra of 1,1‐dimethyl‐1‐silacyclopentane in the vapor and solid phases have been recorded from 4000 to 20 cm −1 . The Raman spectra (3500‐0 cm −1 ) of all phases have been measured and depolarization data have been obtained for both the gaseous and liquid phases. An assignment for the 57 normal modes is presented. The vibrational data are consistent with a twisted ring with molecular symmetry C 2 . The two low frequency bending modes were observed at 260 cm −1 (radial motion) and 63 cm −1 (puckering motion) but distinct ‘hot band’ transitions were not observed. Thus, the potential functions and the dynamics of the low frequency ring‐bending motions could not be calculated.