ROTATING RING-DISK ELECTRODE STUDIES OF THE ELECTROCHEMISTRY OF AROMATIC CARBONYL COMPOUNDS IN THE SOLVENT SULFOLANE.

Neal R Armstrong, Nicholas E. Vanderborgh, Rod K. Quinn

Research output: Contribution to journalArticle

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Abstract

Benzaldehyde undergoes an EC reduction mechanism with an anion dimerization as the following reaction. Digital simulation techniques give values of the second order rate coefficients of k//2 equals 2. 4 multiplied by 10**3 liters/mole-sec. Para-cyanobenzaldehyde undergoes a mixed reduction mechanism. At low disk currents in the reduction intermediate is proposed to be a parent-anion complex. At higher fluxes, dimerization becomes the significant following process; k//2 equals 45 liters/mole-sec. A single electroactive intermediate is observed for the first one-electron reduction of p-nitrobenzaldehyde. The single, chemically, reversible redox mechanism for this compound in sulfolane agrees with spectroelectrochemical results.

Original languageEnglish (US)
Pages (from-to)615-619
Number of pages5
JournalJournal of the Electrochemical Society
Volume122
Issue number5
Publication statusPublished - May 1975
Externally publishedYes

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ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

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