Comparison of infrared and Raman vibrational relaxation functions of the ν1and ν3modes of acetonitrile
- 1 January 1978
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Faraday Discussions of the Chemical Society
- Vol. 66, 252-265
- https://doi.org/10.1039/dc9786600252
Abstract
Measurements of the τs 1R single particle correlation time for acetonitrile (in dilute solution in carbon tetrachloride) using far-infrared measurements have enabled us to compare the vibrational correlation times obtained using infrared and Raman bands arising from the same (A1) modes. The results of this comparison show, for the first time, that quantitiative differences do occur, especially for ν1 of acetonitrile, even in dilute solution. Possible reasons for this difference are discussed. It is emphasized that derivation of τs 1R or τs 2R correlation times from infrared or Raman spectra using τv from isotropic Raman band profiles may therefore give erroneous results.Keywords
This publication has 0 references indexed in Scilit: