Abstract:The reduction and oxidation behaviour of six symmetrical methine-, azamethine-, and phosphamethine dyes with different heterocycles in MeCN solutions has been investigated by means of dc-and ac-polarography (DME, HMDE and rotating Pt-electrode) and cyclic triangular wave voltammetry. The reduction and oxidation mechanism has been found to be of the type ec with the reduction and oxidation step being reversible to irreversible. Reduction and oxidation potentials, transfer coefficients, and specific currents hav… Show more
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