Novel multi-chalcogen ring systems with three different chalcogen atoms: synthesis, structure and redox property of five-membered trichalcogenaheterocycles

S Ogawa, S Yoshimura, N Nagahora…

Index: Ogawa, Satoshi; Yoshimura, Satoko; Nagahora, Noriyoshi; Kawai, Yasushi; Mikata, Yuji; Sato, Ryu Chemical Communications, 2002 , # 17 p. 1918 - 1919

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Citation Number: 2

Abstract

The unusual 7π electron structure of certain five-membered rings has allowed the construction of a unique, reversible one-electron redox system. 1 Recently, we reported reversible one-electron redox responses by the use of 4,7-disubstituted benzo-trichalcogenoles containing sulfur and/or selenium atoms and found by EPR spectroscopy that their radical cation salts obtained on treatment with one-electron oxidant had unusual 7π frameworks. 2 However, to date, ...