Redox chemistry of an anionic dithiolene radical

Abstract

The redox chemistry of the first stable anionic dithiolene radical 1˙ was investigated by both reactivity and cyclic voltammetry studies. While one-electron reduction of 1˙ by Cp₂Co or KC₈ affords the corresponding dithiolate dimers 2 and 3, respectively, one-electron oxidation of 1˙ by Ph₃C⁺BF₄⁻ (or O₂) conveniently gives 4, the neutral dithiolene dimer.