✦ LIBER ✦

Anomalous vibrational linebroadening of the v1 mode in CH2Cl2/CD2Cl2 mixtures

✍ Scribed by A.A. Rodriguez; M. Schwartz

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 391 KB
Volume: 129
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)80228-7

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✦ Synopsis

The concentration dependence of vibrational linewidths in isotopic mixtures has been utilized routinely to ascertain the role of resonant energy transfer on vibrational relaxation in liquids. In a Raman study of the vr modes in CHaCla/CDaCla solutions, it was found that the C-H stretching linewidth actually increases upon isotope dilution. This result, predicted theoretically but never heretofore observed, contains significant ramifications concerning the interpretation of isotapic dilution studies in general.

' Robert A. Welch Predoctoral Fellow.

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