| Autor: |
Andreja Bakac, Jasna Lovrić, Matko Orhanovic, James H. Espenson, V. Butkovic |
| Rok vydání: |
1990 |
| Předmět: |
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| Zdroj: |
ChemInform. 21 |
| ISSN: |
0931-7597 |
| DOI: |
10.1002/chin.199010260 |
| Popis: |
The rates of electron transfer from {sup {sm bullet}}C(CH{sub 3}){sub 2}OH to a series of imidazolium ions and to a series of (NH{sub 3}){sub 5}Co(X-Im){sup 3+} complexes have been measured. A kinetic competition method based on the homolytic scission of the chromium-carbon bond in (H{sub 2}O){sub 5}CrC(CH{sub 3}){sub 2}OH{sup 2+} was used to evaluate rate constants for the reducing agent {sup {sm bullet}}C(CH{sub 3}){sub 2}OH. In both series the rate constants show sensitivity to substituents on the imidazole ring. The rate constants for the free imidazolium ions are correlated by an LFER to the relative electron affinity of the imidazolium ion. The rate constants for the cobalt(III)-imidazole complexes are correlated by the lowest energy d-d absorption band of the complexes. 15 refs., 4 figs., 5 tabs. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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