Abstract

The voltammetric study of potassium tetrakis(2-thienyl)borate 1 in CH 3CN showed two irreversible two-electron steps. Similarly to its tetraphenylborate analogue, the proposed mechanism involved the decomposition of 1 followed by an electropolymerization reaction. The nature of the electrogenerated polymer was different depending on the used experimental conditions. A poly(bithiophene) film was produced over the time-scale of cyclic voltammetry whereas controlled-potential electrolysis yielded a mixture of poly(bithiophene) and a boron-containing polymer, such as poly(dithienylboronous acid).

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