Eberspaecher, Pamela and Wismeth, Erwin and Buchner, Richard and Barthel, Josef (2006) Ion association of alkaline and alkaline-earth metal perchlorates in acetonitrile. JOURNAL OF MOLECULAR LIQUIDS, 129 (1-2). pp. 3-12. ISSN 0167-7322,
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In this contribution results of a joint investigation by dielectric and infrared spectroscopy into the ion association of LiClO4, NaClO4, Mg (ClO4)(2) and Ca(ClO4)(2) in acetonitrile solutions at 25 degrees C are presented. All electrolytes exhibit multi-step ion association. Whereas the alkali salts only form solvent-shared (SIP) and contact ion pairs (CIP), a significant amount of neutral triple ions M(ClO4)(2) (T-0) is additionally observed for the earth-alkali salts. For Ca(ClO4)(2) there are also indications for the formation of [Ca2ClO4](3+) triples (T+). Also discussed are effective solvation numbers derived from the acetonitrile relaxation. (C) 2006 Elsevier B.V All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | APROTIC DONOR SOLVENTS; DIELECTRIC-RELAXATION; ELECTROLYTE-SOLUTIONS; FTIR SPECTROSCOPY; PAIR FORMATION; SOLVATION; LITHIUM; SODIUM; AGGREGATION; dielectric relaxation; infrared spectroscopy; ion association; solvation number; acetonitrile; perchlorates |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Jan 2021 10:03 |
| Last Modified: | 20 Jan 2021 10:03 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33878 |
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