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Raman and infrared spectra of the solid chlorofluorocarbons. II –Dichlorodifluoromethane
Author(s) -
Leblanc L. M.,
Anderson A.
Publication year - 1991
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.1250220504
Subject(s) - raman spectroscopy , tetragonal crystal system , chemistry , fermi resonance , infrared , infrared spectroscopy , analytical chemistry (journal) , crystal structure , lattice (music) , spectral line , nuclear magnetic resonance , crystallography , optics , organic chemistry , physics , astronomy , acoustics
Raman and infrared spectra of solid dichlorodifluoromethane were recorded in both the internal and lattice mode regions at temperatures between 20 and 80 K. The lattice spectra suggest that the unit cell is small and noncentrosymmetric, and a bimolecular tetragonal cell with factor group C 4 is compatible with the observed results. Plausible assignments of all main spectroscopic features are presented, and splittings of internal modes are interpreted in terms of isotopic, crystal, field, Fermi resonance and LO–TO effects.