Journal
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Volume 500, Issue 1-2, Pages 12-20Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0022-0728(00)00234-5
Keywords
quinones; cyclic voltammetry; EE mechanisms; acetonitrile
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The electrochemical reduction of eight quinones, 9,10-anthraquinone (1), duroquinone (2), 2,6-di-tert-butyl-1,4-benzoquinone (3), 2,6-dimethoxy-1,4-benzoquinone (4), 9,10-phenanthrenequinone (5), tetrachloro-1,2-benzoquinone (6), tetrabromo-1,2-benzoquinone (7) and 3,5-di-tert-butyl-1,2-benzoquinone (8), have been studied in acetonitrile. In every case it was found that cyclic voltammograms differed in significant ways from those expected for simple stepwise reduction of the quinone to its radical anion and dianion. The various types of deviations for the eight quinones have been cataloged and some speculation is offered concerning their origins. (C) 2001 Elsevier Science B.V. All rights reserved.
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