Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 339 - 348 (1986)
Update date:2022-08-11
Topics:
Opallo, Marcin
The one-electron electro-oxidation of 1,4-phenylenediamine to the corresponding radical cation has been studied by cyclic voltammetry at a Pt electrode in perchlorate solutions in a wide range of aprotic and hydrogenbonded solvents.A linear relationship between the redox potential of this system and the donor number of a given solvent has been found.It has been shown that the dynamics of solvent reorientation strongly affects the heterogeneous electron transfer rate in the studied case: an almost linear relationship between the standard rate constant and the reciprocal of the longitudinal dielectric relaxation time of a given solvent has been found.It has been suggested that the solvent dynamics affects the rate of the analogous homogeneous electron-transfer reaction.
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