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Polarized infrared and Raman spectra of KGd(WO4)2 and their interpretation based on normal coordinate analysis

✍ Scribed by L. Macalik; J. Hanuza; A. A. Kaminskii

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 264 KB
Volume: 33
Category: Article
ISSN: 0377-0486
DOI: 10.1002/jrs.829

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✦ Synopsis

Abstract

The direction of the transition dipole moments for the vibrations of the single W^O^W and double W^O^~O~W oxygen bridges in layered scheelite tungstates is derived from the Polarized infrared and Raman spectra of the KGd(WO~4~)~2~ single crystal. Their experimental values are compared with those obtained from the calculated atomic Cartesian displacements for the particular normal modes. The assignment of the IR and Raman bands to the respective molecular vibrations was obtained on the basis of the normal coordinate analysis and potential energy distribution. Copyright © 2002 John Wiley & Sons, Ltd.

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