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Hyper‐Raman spectra of K 2 SnCl 6 crystals
Author(s) -
Morioka Y.,
Nakagawa I.
Publication year - 1987
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.1250180802
Subject(s) - raman spectroscopy , raman scattering , infrared , chemistry , spectral line , ion , lattice (music) , crystal (programming language) , reflection (computer programming) , lattice vibration , molecular vibration , infrared spectroscopy , molecular physics , normal mode , crystal structure , analytical chemistry (journal) , phonon , crystallography , vibration , optics , condensed matter physics , physics , organic chemistry , chromatography , quantum mechanics , astronomy , computer science , acoustics , programming language
The hyper‐Raman spectra of K 2 SnCl 6 crystals were measured for various scattering geometries at ambient temperature. The F 2u deformation mode of [SnCl 6 ] 2− , which is inactive in infrared and Raman spectra but hyper‐Raman active, was observed at 112 cm −1 . The TO and LO frequencies of an F 1u species are in good agreement with those obtained in a previous study of the far‐infrared reflection spectrum. A lattice dynamics analysis of the optically active crystal vibrations based on a rigid ion model explains the observed frequencies of all optical modes satisfactorily.