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Raman spectra of halogen‐substituted methanes in the liquid state. 3 —Temperature effects
Author(s) -
Fukushi Kohji,
Fukuda Takuya,
Kimura Masao
Publication year - 1987
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.1250180109
Subject(s) - raman spectroscopy , isotropy , depolarization , chemistry , molecule , halogen , depolarization ratio , spectral line , analytical chemistry (journal) , molecular physics , optics , organic chemistry , alkyl , physics , medicine , astronomy , endocrinology
The effect of temperature on the peak positions, the isotropic and reorientational band widths and the depolarization ratios of the Raman bands for the totally symmetric vibrations of CHCl 3 , CH 2 Cl 2 , CH 2 Br 2 , CH 3 Br, CH 3 I and CD 3 I has been measured in the liquid state. The isotropic band width for a CX stretching vibration decreases with increasing temperature for molecule with only one CX bond, whereas it increases for a molecule with two or three equivalent CX bonds. The isotropic band width for the deformation vibrations decreases with increase in temperature. For all the bands, the depolarization ratios depend only slightly on temperature.