Reactions of cation radicals of EE systems. 10. The influence of ion association on cation radical disproportionation

Eric E. Bancroft, Jeanne E. Pemberton, Henry N. Blount

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Disproportionation equilibria of the cation radicals of 10-phenylphenothiazine, thianthrene, and 9,10-diphenylanthracene have been voltammetrically characterized in acetonitrile, butyronitrile, nitrobenzene, and methylene chloride containing hexafluorophosphate, tetrafluoroborate, and perchlorate supporting electrolytes. Disproportionation was observed to be significantly influenced by associative interactions between the oxidized forms of the substrates and the anions of the supporting electrolytes. Disproportionation was found to be favored by anions of greater ionic potential. This anion effect in associated systems was observed to be "leveled" by solvents of increased polarity. In the absence of ion association, disproportionation was found to be favored by more polar solvents.

Original languageEnglish (US)
Pages (from-to)2557-2560
Number of pages4
JournalJournal of physical chemistry
Volume84
Issue number20
DOIs
StatePublished - Jan 1 1980
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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