Raman scattering investigation of the orientational dynamics of methyl iodide

Deb, S. K. ; Bansal, M. L. ; Roy, A. P. (1986) Raman scattering investigation of the orientational dynamics of methyl iodide Chemical Physics, 110 (2-3). pp. 391-401. ISSN 0301-0104

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/030101...

Related URL: http://dx.doi.org/10.1016/0301-0104(86)87094-X

Abstract

A Raman scattering study of the v3 vibration-rotation band in methyl iodide as a function of temperature and dilution (in cyclohexane) has been performed. All the data satisfy the second moment criterion. Detailed information about rotational correlation function, angular velocity correlation function, various correlation times and mean-square torque has been obtained. The correlation function, in the pure liquid, decays slowly with decrease in temperature whereas it decays faster with decreasing concentration in cyclohexane. It has been shown, from a consideration of the second moment as a function of concentration, that the contribution of collision-induced scattering to the v3 band of methyl iodide is negligible. Applicability of a simple "damped librator model", with a view to understanding certain aspects of the rotational motion in methyl iodide, is discussed.

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Deposited On:24 Aug 2011 11:23
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