Barthel, J. and Gores, H.-J. and Kraml, L. (1996) Effects of electronegative substituents of anions on ion-pair formation .1. Temperature dependence of the conductivity of lithium fluoroacetate and alkali-metal acetate solutions in dimethyl sulfoxide. JOURNAL OF PHYSICAL CHEMISTRY, 100 (4). pp. 1283-1287. ISSN 0022-3654
Full text not available from this repository.Abstract
The effect of electron-withdrawing substituents on ion-ion interactions is exemplified by conductivity studies on dimethyl sulfoxide solutions of lithium acetate and fluoroacetates. Association constants decrease upon increasing fluorine substitution by a factor of 50. They are correlated with mean oxygen charges calculated with the help of semiempirical quantum mechanical methods. The distance parameters from such calculations prove to be good estimates for the liquid state. Non-Coulombic contributions of the CH3COO- ion to the ion-ion interactions show stronger competition with solvent molecules in the solvation shell of the Li+ ion than the CF3COO- ion, which is a weak ligand in comparison to the dimethyl sulfoxide molecule.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTROLYTE-SOLUTIONS; 1-1 ELECTROLYTES; CONDUCTANCE; DIMETHYLSULFOXIDE; RANGE |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Nov 2023 10:22 |
| Last Modified: | 14 Nov 2023 10:22 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51991 |
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