ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The Raman band of the ν1 vibrational mode of SO42- has been measured in aqueous solutions of Na2SO4 and (NH4)2SO4 at 5-80°C, and analysed from the stochastic point of view. The band shape is approximately symmetric, but cannot be reproduced by a Lorentzian curve. The vibrational relaxation is caused by a random modulation of very low frequency from surrounding water. The vibrational correlation time for the ions is not sufficiently long to make allowance for the Markovian process of relaxation, compared with the correlation time for the bath, that is water. The vibrational correlation function appropriate for these ions is proposed.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250110210
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