Electrochemical oxidation of selenanthrene in acetonitrile at conventional electrodes and microelectrodes

✍ Scribed by R. Müller; L. Lamberts; M. Evers

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 936 KB
• Volume: 39
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(94)00260-6

✦ Synopsis

The electrochemical oxidation of selenanthrene was studied by conventional and microelectrode techniques. The first oxidation signal was proved to follow an ECE mechanism: steady-state voltammetry at microelectrodes and cyclic voltammetry showed a monoelectronic transformation into the cation-radical, whereas controlled potential coulometry and electrolysis gave the corresponding 5selenoxide with an exchange of 2 F mol-'. The electrochemical reversibility of the intermediary cationradical was investigated and its stability compared with those of similar heterocycles. Further oxidation led to 5,10-selendioxide.