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Raman and infrared spectra of K 2 PtCl 6 :Ir 4+ crystals
Author(s) -
Kuan T. S.
Publication year - 1976
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.1250040404
Subject(s) - raman spectroscopy , infrared , dopant , infrared spectroscopy , chemistry , analytical chemistry (journal) , crystallography , materials science , doping , physics , optics , optoelectronics , organic chemistry , chromatography
The low temperature Raman and far‐infrared (IR) spectra of solution‐grown crystals of K 2 PtCl 6 :Ir 4+ have been studied. In addition to the strong absorptions of the host compound, a number of weak features were observed. The Raman band at 278 cm −1 has been assigned to ν 2 (E g ) of IrCl 6 2− . An IR‐ and Raman‐active band, observed at 236 cm −1 when K 2 IrBr 6 was used as the dopant, has been assigned to ν(Pt‐Br), A 1 g ′ of [PtCl 4 Br 2 ] 2− . The symmetry of the host compound was lowered by the presence of the dopant ions, resulting in a splitting of some of the IR‐active degenerate modes. Preliminary Raman experiments with K 2 PtCl 6 :Os 4+ indicated that ν 2 of OsCl 6 2−was at 271 cm −1 .