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Polarized infrared and Raman spectra of KGd(WO 4 ) 2 and their interpretation based on normal coordinate analysis
Author(s) -
Macalik L.,
Hanuza J.,
Kaminskii A. A.
Publication year - 2002
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.829
Subject(s) - raman spectroscopy , infrared , dipole , normal mode , chemistry , force constant , normal coordinates , potential energy , cartesian coordinate system , spectral line , molecular physics , infrared spectroscopy , scheelite , vibration , analytical chemistry (journal) , physics , atomic physics , molecule , optics , geometry , quantum mechanics , mathematics , tungsten , chromatography , organic chemistry
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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