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Isotropic Raman band shape and vibrational relaxation for molecules in the liquid state: A Critical study of some band shape functions
Author(s) -
Fujita Kazuyoshi,
Fukuda Takuya,
Fukushi Kohji,
Kimura Masao
Publication year - 1985
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.1250160606
Subject(s) - isotropy , raman spectroscopy , relaxation (psychology) , raman scattering , chemistry , condensed matter physics , function (biology) , molecular physics , vibrational energy relaxation , molecule , optics , physics , psychology , social psychology , evolutionary biology , biology , organic chemistry
A band shape function for the isotropic Raman scattering described in terms of the band width in the weak coupling limit and the relaxation time of the bath mode has been proposed by summing the results of Berne et al. [J. Chem. Phys. 45, 1086 (1966)], Wang [ Mol. Phys. 33, 207 (1977)] and Knauss [ Mol. Phys. 36, 413 (1978)]. The results of band analyses with this function have been compared with those obtained from other conventionally used band shape and correlation functions. The present function is preferable for precise interpretation of vibrational relaxation mechanisms, particularly for those cases where temperature and concentration dependence of the band parameters are involved.