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Electrochemical and ESR Studies of tert-Butanol Oxidation Mechanism in the Presence of radical Cations Pyrazine-di-N-oxide and Its Substituted Derivatives as Mediatorsстатья
- Авторы: Kulakovskaya S.I., Kulikov A.V., Shestakov A.F.
- Журнал: Russian Journal of Electrochemistry
- Том: 46
- Номер: 9
- Год издания: 2010
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 1047
- Последняя страница: 1055
- Аннотация: The methods of cyclic voltammetry, ESR electrolysis, and quantum chemical simulation wereused to study the tert-butanol (tert-BuOH) oxidation mechanism in the presence of mediator cation radicals of pyrazine-di-N-oxide, 2,5-di-Me- and 2,3,5,6-tetra-Me-pyrazine-di-N-oxdides. This study was carried out on carbon glass (CG) and Pt electrodes in 0.1 M LiClO4 solution in acetonitrile and on Au electrode intert-butanol containing 0.05 M LiClO4. The ESR spectra of cation and anion radicals of aromatic di-N-oxides were recorded in tert-BuOH. The quantum chemical simulation of the reaction between pyrazine-di-N-oxide radical cation and C–H bond in tert-BuOH was performed. The results were explained in the terms of the general two-electron oxidation mechanism of tert-BuOH in the complex with aromatic di-N-oxide cation radicalas mediator.
- Добавил в систему: Kulakovskaya Svetlana Ivanovna