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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Dynamics of the Sulfate Ion in Dilute Water-DMF Solutions

  • Hiroyasu Nomura , Shinobu Koda and Takashi Sakurai

Abstract

The Raman band of the v1(A1) mode of SO42- of Li2S04 dissolved in water and water-dimethyl-formamide mixtures was measured in the concentration range 0.01 to 0.2 mol • dm-3. The central frequency of the sulfate ion increases with sulfate concentration. The limiting frequency at infinite dilution depends on the DMF content. The Raman band becomes asymmetric with increasing concentration of Li2SO4 in 20 wt% DMF mixtures and with addition of LiCl to the aqueous solution of Li2SO4. The vibrational relaxation behavior of the v1(A1) mode was investigated by analyzing the vibrational correlation function based on Kubo's stochastic theory.

Received: 1994-11-4
Published Online: 2014-6-2
Published in Print: 1995-1-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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