Elektrochemisches Verhalten von Dibenzodichalkogeninen und verwandten Verbindungen / Electrochemical Behavior of Dibenzodichalcogenins and Related Compounds
Open Access
- 1 June 1985
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 40 (6) , 774-781
- https://doi.org/10.1515/znb-1985-0614
Abstract
The electrochemical behavior of thianthrenes 1-4, of selenanthrenes 5-8 (dibenzo-1,4-dichal- cogenins). of 2,2′-dithiobiphenyls 9 and 10 (dibenzo-1,2-dichalcogenins) as well as of the related compounds 11-13 were studied by cyclic voltammetry in acetonitrile. All dibenzodichalcogenins can be [oxidised in two one-electron-steps, the processes being totally reversible for 7, nearly reversible for 2 and 9, quasireversible for 1, 3, 4,10 and 13, and irreversible in all other cases. For 1- 4, 7, 9, 10 and 13 the diffusion coefficients of the electrochemically active species and the rate constants of the electron transfer are calculated from the potentials measured. Electrolysis of 9 in dichloromethane with tetrabutylammonium perchlorate as supporting electrolyte yields [dithiobiphenyl] + [C104]- (14), while oxidation by nitrosyl hexachloroantimonate gives [(dithiobiphenyl)2] + [SbCl6]- (15).Keywords
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