Molecular motion in the supercooled liquid state: ion pairs in slow motion
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 69, 1785-1792
- https://doi.org/10.1039/f29736901785
Abstract
The dielectric relaxation behaviour of dilute solutions of tri-n-butylammonium picrate and tri-n-butylammonium iodide in o-terphenyl have been studied over a frequency range (1 to 105 Hz) in the supercooled liquid state. The ion-pairs are found to relax in this frequency range by a cooperative mechanism involving the solvent molecules, and the mechanism for this process is discussed. In addition, the thermally stimulated depolarization currents of electrets formed from the ion-pair solutions of the picrate have been studied and are shown to yield information on the motion of the ion pairs in the region of 10–2 Hz.Keywords
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