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http://dx.doi.org/10.5012/jkcs.2006.50.4.307

Electrochemical Studies on Some Substituted Thiadiazoles  

El Maghraby, A. A. (Cairo University(Egypt))
Abou-Elenien, G. M. (Cairo University(Egypt))
Abdel-Reheem, N. A. (Cairo University(Egypt))
Abdel-Tawab, H. R. (Cairo University(Egypt))
Publication Information
Journal of the Korean Chemical Society / v.50, no.4, 2006 , pp. 307-314 More about this Journal
Abstract
The redox characteristics of 2-ketohydrazono-3-phenyl-5-substituted-2,3-dihydro-1,3,4-thiadiazoles and its derivatives (1a-h) has been investigated in nonaqueous solvents such as 1,2-dichloroethane (DCE), dichloromethane (DCM), acetonitrile (AN), tetrahydrofuran (THF), and dimethylsulfoxide (DMSO) containing 0.1 mol.dm-3 tetra n-butylammonium perchlorate (TBAP) as supporting electrolyte at platinum ectrode. Through controlled potential electrolysis, the oxidation and reduction products of the investigated compounds can be separated and indentified. The redox mechanism is suggested and proved. It was found that all the investigated compounds are oxidized in two irreversible one-electron processes following the well known pattern of EC-mechanism. On the other hand, these compounds are reduced in a single two electron or in a successive two one electron processes following the well known pattern of EEC-mechanism according to the nature of the substituent
Keywords
Substituted Thiadiazoles; Oxidation and Reduction Products; EC-Mechanism
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