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Proceedings Paper

Temperature dependence of isotropic Raman intramolecular vibrational band contour formation in some liquids: the computer research of methyl iodide
Author(s): V. D. Danchuk; A. P. Kravchuk
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Paper Abstract

The theoretical analysis of resonant dynamic intermolecular interaction influence on formation of isotropic intramolecular vibrational bands contours in liquids at various temperatures, stipulated by existence of molecules local ordering, has been conducted within the framework of cluster-continuum modle. The new mechanism of isotropic spectral bands narrowing with temperature, observed for some liquids, is offered. This mechanism is stipulated by growing similarity for frequencies of resonant splitting intramolecular vibrational components as structural elements of appropriate spectral bands owing to temperature disording of local molecular surroundings in liquids. On example of liquid methyl iodide the computer analysis of proposed mechanism influence on formation of liquids vibrational spectral function at various temperatures is conducted. The satisfactory consent between results of computer analysis and appropriate experimental data is obtained.

Paper Details

Date Published: 11 December 2002
PDF: 7 pages
Proc. SPIE 4938, Selected Papers from the International Conference on Spectroscopy of Molecules and Crystals, (11 December 2002); doi: 10.1117/12.486668
Show Author Affiliations
V. D. Danchuk, National Transport Univ. (Ukraine)
A. P. Kravchuk, National Transport Univ. (Ukraine)

Published in SPIE Proceedings Vol. 4938:
Selected Papers from the International Conference on Spectroscopy of Molecules and Crystals
Galina A. Puchkovska; Sergey A. Kostyukevych, Editor(s)

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