Conclusions
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1.
The formation of radical ions and neutral radicals during the quenching of substituted p-benzoquinone triplets by diphenylamine in nonsolvating polar solvents proceeds through competing reactions in the collision complex.
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2.
The lifetimes and radii of the radical ion pairs formed in the quenching of the substituted p-benzoquinones by diphenylamine have been estimated.
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3.
The value of the rate constant for the hydrogen atom transfer during quenching of the substituted p-benzoquinone triplets by diphenylamine falls off with an increase in the electron-acceptor activity of the quinone.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1234–1239, June, 1981.
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Levin, P.P., Kokrashvili, T.A. Study of the transfer of electrons and hydrogen atoms between substituted p-benzoquinone triplets and diphenyamine by flash-photolysis methods. Russ Chem Bull 30, 971–976 (1981). https://doi.org/10.1007/BF00950274
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DOI: https://doi.org/10.1007/BF00950274