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Raman spectra of halogen‐substituted methanes in the liquid state. 2 —Band widths of the totally symmetric vibration bands
Author(s) -
Fukushi Kohji,
Kimura Masao
Publication year - 1982
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.1250130103
Subject(s) - isotropy , raman spectroscopy , dephasing , chemistry , dipole , halogen , anisotropy , molecular physics , vibration , spectral line , computational chemistry , analytical chemistry (journal) , condensed matter physics , optics , organic chemistry , physics , alkyl , quantum mechanics , astronomy
The isotropic and anisotropic Raman band widths of the totally symmetric vibrations of halogen‐substituted methanes have been measured in the liquid state at room temperature. The isotropic CH and CD stretching vibration bands broaden with increasing molecular weight and this is qualitatively explained by the Fischer‐Laubereau dephasing model. The isotropic band widths of the deformation vibrations are correlated with the reorientational correlation times and are attributed to broadening due to interactions dependent on the orientation, such as the dipole–dipole interaction.