Polarographic and cyclic voltammetric behaviour of some azo compounds derived from sulfonamide in DMF-aqueous solutions

…, HM Killa, A Fattah, A Fattah, SA Yasen

Index: Mabrouk, El-Sayed M.; Killa, Hamada M.; Fattah, Abdel Fattah A. Abdel; Yasen, Shalaby A. Collection of Czechoslovak Chemical Communications, 1992 , vol. 57, # 2 p. 268 - 275

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Citation Number: 3

Abstract

Abstract The polarographic and cyclic voltammetric behaviour of (2-hydroxyphenylazo)-4- benzenesulfonamide and some of its derivatives have been studied in Britton-Robinson buffer series containing 30 vol.% of DMF. Over the entire pH range (2-12), the reduction pathway occurs through an irreversible 4-electron step corresponding to the reduction of N= N center to the amine stage. The voltammograms recorded in acidic and alkaline solution ...