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Raman and infrared spectra of solid hydrogen selenide
Author(s) -
Paldus B. A.,
Schlueter S. A.,
Anderson A.
Publication year - 1992
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.1250230205
Subject(s) - raman spectroscopy , infrared spectroscopy , selenide , infrared , chemistry , crystal structure , spectral line , molecule , crystallography , phase (matter) , solid solution , materials science , analytical chemistry (journal) , optics , organic chemistry , physics , selenium , astronomy
Raman and infrared spectra of solid H 2 Se at temperatures between 85 and 20 K are reported and interpreted. The broad peaks observed in the spectra of phase II are characteristic of an orientationally disordered crystal, whereas the multiple components of the internal modes and rich lattice spectra found for phase III are indicative of an ordered structure. The unit cell for this phase is probably centrosymmetric and contains at least four molecules. Plausible assignments for all observed spectroscopic features are proposed.