Abstract
The absorption spectra of phenazine di-N-oxide radical cation (OPO+·) in dichloromethane were recorded by the spectroelectrochemical method in the range from 300 to 700 nm. The reactions of the electrochemically generated OPO+· withpara-substituted toluenes, ethylbenzene, and cumene were studied. Using differential cyclic voltammetry, relative rate constants of reactions of OPO+· with substrates were determined; their correlations with σ+ para constants of substituents gives p = -2.7, which attests to the nonradical character of the reaction of OPO+· with RH. This conclusion is confirmed by the study of the effect of O2 on oxidation of ethylbenzene and cumene.
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1992–1998, August, 1996.
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Koldasheva, E.M., Strelets, V.V., Geletii, Y.V. et al. Phenazinee di-N-oxide radical cation and its reactions with hydrocarbons. Russ Chem Bull 45, 1889–1895 (1996). https://doi.org/10.1007/BF01457770
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DOI: https://doi.org/10.1007/BF01457770