Rapid mechanochemical preparation of a sandwich-like charge transfer complex

Abstract

We report a rapid and selective preparation of a 1 : 2 charge transfer (CT) complex from anthracene and 5,6,7,8-tetrafluoro-1,4-anthraquinone, either through a solution process or from mechanical grinding of the binary mixture. Moreover, CT complex formation inhibits the Diels–Alder reaction in the crystalline state.