Abstract

Electrode reactions of 2,2,6,6-tetramethylpiperidinenitroxide (TMPNO) and di-tert-butylnitroxide (DTBNO) at platinum in acetonitrile solution were investigated by means of linear sweep voltammetry and controlled potential coulometry. In the case of TMPNO, the voltammetric resuls were satisfied with diagnostic criteria for reversible charge transfer, and those of esr and coulometry led to one electron transfer. In the case of DTBNO, the coulometric results in which apparent number of electron was 1 3 times the real one led to a mechanism with interesting series of reactions. This was also confirmed by esr.

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