BARTHEL, J and KLEEBAUER, M and BUCHNER, R (1995) DIELECTRIC-RELAXATION OF ELECTROLYTE-SOLUTIONS IN ACETONITRILE. JOURNAL OF SOLUTION CHEMISTRY, 24 (1). pp. 1-17. ISSN 0095-9782,
Full text not available from this repository.Abstract
Complex permittivity spectra in the frequency range 0.95 less than or equal to v (GHz) less than or equal to 89 for acetonitrile and its solutions of LiBr, NaI, NaClO4, and Bu(4)NBr at 25 degrees C show one Debye equation for the neat solvent whereas the superposition of a Debye process for the solute and a Cole-Cole distribution for the solvent is necessary to account for the dielectric relaxation behavior of the solutions. The reorientation of bulk acetonitrile is diffusive and only weakly coupled to viscosity. The number of solvent molecules irrotationally bound to the electrolyte is in good agreement with conventional solvation numbers for all electrolytes, when kinetic depolarization is assumed to be negligible. The solute relaxation process is dominated by the formation kinetics and reorientation of contact ion pairs. There is evidence for solvent-shared ion pairs in dilute NaClO4 solutions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LIQUID ACETONITRILE; LITHIUM BROMIDE; PERMITTIVITY; CONDUCTANCE; COEFFICIENTS; 25-DEGREES-C; SCATTERING; DECREMENT; DYNAMICS; SOLVENTS; DIELECTRIC RELAXATION; COMPLEX PERMITTIVITY; ACETONITRILE SOLUTIONS; ION PAIRING; SOLVATION; LIQUID STATE DYNAMICS |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52860 |
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