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Vibrational dephasing of arsine in the liquid and plastic crystalline states
Author(s) -
Wilde Richard E.
Publication year - 1988
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.1250190707
Subject(s) - dephasing , raman spectroscopy , phase (matter) , molecular vibration , chemistry , molecular physics , plastic crystal , materials science , analytical chemistry (journal) , condensed matter physics , optics , organic chemistry , physics
Raman spectra of the ν 1 bands of AsH 3 have been obtained for the liquid state and for phase I of the solid state. It is shown that phase I is a plastic crystalline phase. A modeling procedure applied to the vibrational autocorrelation function shows that the modulation of the vibrational frequency is fast and that the vibrational dephasing is probably caused by the rotations. Evidence for a ν 1 ‐ν 3 Coriolis‐coupling effect is also presented.