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Raman spectra and normal coordinate analysis of thirteen selectively deuterated tetramethylsilanes
Author(s) -
Fischer D.,
Klostermann K.,
Oehme K.L.
Publication year - 1991
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.1250220104
Subject(s) - isotopomers , raman spectroscopy , chemistry , deuterium , spectral line , valence (chemistry) , analytical chemistry (journal) , force field (fiction) , nuclear magnetic resonance , atomic physics , molecule , physics , optics , organic chemistry , quantum mechanics , astronomy
Abstract The Raman spectra of liquid (CH 3 ) 4‐m Si(CD 3 ) m ( m = 0‐4), (CH 2 D) 4‐n Si(CH 3 ) n and (CHD 2 ) 4‐n Si(CD 3 ) n (n = 0‐3) were recorded from 3200 to 50 cm −1 . Normal coordinate analyses were made using both a unique internal valence force field (IVFF 1) for all 13 isotopomers and 13 slightly modified IVFF 2s for each isotopomer, including torsional modes in each case. Vibrational assignments were made using the potential energy distributions and eigenvectors in addition to the depolarization ratios, the IR spectra and the Teller‐Redlich product rule.