Keywords
cyclic voltammetry
electrochemical reduction
radical anions
thioxanthenes
Abstract
The electrochemical reduction of benzo[b]thioxanthene-6,11,12-trione and thioxanthene-1,4,9-trione in DMSO, MeCN and HMPA is an EE process, which is characterized by two separate one electron reversible peaks on cyclic voltammograms, first peak retains reversibility in DMSO–H2O mixtures, corresponding radical anions were obtained by one electron reduction of the above compounds and characterized by EPR and DFT calculations at the (U)B3LYP/6-31+G* level of theory.
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