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Raman spectra of selenium dioxide at low temperatures
Author(s) -
Anderson A.,
Sanders Angela,
Smith W.
Publication year - 2000
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 - 10.1002/1097-4555(200005)31:5<403::aid-jrs529>3.0.co;2-k
Subject(s) - raman spectroscopy , selenium , chemistry , phase transition , spectral line , oxygen , analytical chemistry (journal) , chemical physics , thermodynamics , physics , optics , organic chemistry , astronomy
Raman spectra of solid selenium dioxide at temperatures between 15 K and 295 K are reported. No evidence of a solid state phase transition in this range is found. Small wavenumber shifts and significant sharpening of spectral features are observed at low temperatures, the latter resulting in many more components being resolved, so that the full complement of fundamentals predicted by group theory is detected. Plausible assignments are proposed, based on the puckered chain structure containing both bridging and terminal oxygen atoms. Copyright © 2000 John Wiley & Sons, Ltd.