Abstract: Trialkylsulfenamides give long-lived enough radical cations for their cyclic voltammograms to be electrochemically reversible at fast enough scan rates. Radical cation lifetimes are increased by a branching in the nitrogen substituent, decreased by replacing a methyl sulfur substituent by tert-butyl, and decreased when pyridine is added and at higher sulfenamide concentration. For the five compounds for which hydrazine analogue (S ...