Introduction of an Arylethynyl Group onto an Anthracene Bisimide Core for Molecular Design of New π-Conjugated Compounds

Abstract

Novel ethynylated anthracene bisimide (ABI) derivatives were synthesized by Sonogashira and Stille couplings, and the electronic spectra of the new compounds were compared with those of molecules with related structures. The absorption spectrum and the electrochemical data of the ABI with a 9-anthrylethynyl group suggested weak electronic interactions between the donor anthracene unit and the acceptor ABI unit.