Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Study of Vibrational Dephasing of Simple Molecules in Liquids

  • Kim, Yeong-Il (Department of Chemistry, Seoul National University) ;
  • Shin, Kook-Joe (Department of Chemistry, Seoul National University)
  • Published : 1987.04.20
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Abstract

A theory in which the Enskog hard sphere collisional dynamics complements the hydrodynamic theory is applied to the fast modulation dephasing dynamics in liquids which leads to homogeneous line broadening in the isotropic Raman spectra. The dephasing times of several molecules in pure liquids and in trace solutions in the solvent $CCl_4$ are calculated and these are compared with experimental values. The temperature dependence of the dephasing time of liquid acetonitrile and the isothermal density dependence of the dephasing time of liquid methyl iodide are also investigated.

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