T. Douadi, S. Benabid, M. Cariou
Aug 1, 2003
Citations
0
Influential Citations
2
Citations
Journal
Electrochimica Acta
Abstract
Abstract The anodic oxidation of 3,3′-dimethoxybenzidine and its derivatives were studied by cyclic voltammetry, voltammetry at a rotating platinum electrode, chronopotentiometry and constant potential coulometry. The exhaustive oxidation of 3,3′-dimethoxybenzidine led at the potential of the first oxidation peak and second oxidation peak, respectively, to a stable cation radical salt (characterized by ESR spectroscopy) and to a quinone-diimine. Whereas, 3,3′-dimethoxy- N , N , N ′, N ′-tetramethylbenzidine afforded directly a dication salt owing to potential inversion 3,3′-dimethoxy- N , N , N ′, N ′-tetraethylbenzidine gave the corresponding soluble cation radical salt.