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Raman spectra of bismuth trihalides in the solid and liquid states
Author(s) -
Ichikawa Kazuhiko,
Fukushi Kohji
Publication year - 1986
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.1250170128
Subject(s) - raman spectroscopy , bismuth , chemistry , halide , crystallite , spectral line , phase transition , analytical chemistry (journal) , phase (matter) , monatomic ion , crystallography , inorganic chemistry , condensed matter physics , optics , organic chemistry , physics , astronomy
Raman spectra were measured for BiBr 3 and BiCl 3 in the polycrystalline and liquid phases. A new assignment for BiBr 3 is proposed on the basis of the temperature dependence of the Raman spectra. An abrupt spectral change originating from an order‐disorder phase transition was observed in BiBr 3 . In the liquid phase, both compounds showed a very broad composite spectra in the Bi–X stretching vibration region, which can be understood as originating from a mixture of multiply charged bismuth halide complexes in addition to the monatomic halide anions.