Substituent effects in the one-electron reduction of anthraquinone derivatives

Autor:	L. L. Gordienko, A. I. Brodskii
Rok vydání:	1967
Předmět:	Polarography Electrolysis Chemistry Substituent General Chemistry Photochemistry Anthraquinone Cathode law.invention chemistry.chemical_compound law Anthraquinones One-electron reduction Anthraquinone Derivatives
Zdroj:	Theoretical and Experimental Chemistry. 1:294-296
ISSN:	1573-935X 0040-5760
DOI:	10.1007/bf00526346
Popis:	Polarographic reduction against (C2H5)4NBr as background in dimenthyformamide has been applied to 17 anthraquinones with α- and Β-substituents. There are two pronounced half-waves, which correspond to two one-electron degrees of reduction, a semiquinone anion being formed as intermediate. An ESR signal is produced when this radical is formed by electrolysis with a cathode potential equal to E1/2. The observed E1/2 fit Hammett's equation closely. The relation E1/2 to donor-acceptor aspects of the substituents is discussed.
Databáze:	OpenAIRE
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