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Raman and infrared spectra of BaCrO 4 and BaSeO 4
Author(s) -
Scheuermann W.,
Schutte C. J. H.
Publication year - 1973
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.1250010610
Subject(s) - raman spectroscopy , infrared , spectral line , argon , infrared spectroscopy , chemistry , analytical chemistry (journal) , laser , molecular physics , optics , physics , organic chemistry , astronomy
The vibrational spectra of BaCrO 4 and BaSeO 4 were recorded at 295K and 77K. The Raman spectrum of BaCrO 4 melt was also recorded, using the energy of an argon laser beam as a heat source. The spectra of the two compounds proved to be remarkably different, although they belong to the same space group and are said to have the same structure. Evidence was found that the principles of mutual exclusion and inversion doubling are effective in both compounds; these are due to rather strong interionic coupling. An assignment could only be made for the most prominent bands.