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Stochastic model for correlation functions from anisotropic Raman line shapes
Author(s) -
Ribeiro Mauro C. C.,
Santos Paulo S.
Publication year - 1995
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.1250260826
Subject(s) - dephasing , raman spectroscopy , correlation function (quantum field theory) , context (archaeology) , relaxation (psychology) , anisotropy , chemistry , correlation , vibrational energy relaxation , molecular physics , function (biology) , product (mathematics) , molecular vibration , statistical physics , chemical physics , computational chemistry , molecule , physics , condensed matter physics , mathematics , quantum mechanics , geometry , organic chemistry , psychology , paleontology , social psychology , evolutionary biology , dielectric , biology
The separation of the Raman correlation function as a product of independent vibrational and reorientational correlation functions is investigated. The present model is a unification of previous models which treat separately vibrational dephasing and reorientational relaxation within the context of the stochastic approach. It indicates that the so‐called product approximation for the Raman correlation function can fail even when the relaxation rate is distinct for vibrational and reorientational relaxations. Application to experimental data for liquid CS 2 is presented.