Synthesis of 1,1′-diaryl-4,4′-bibenzo[c]thiophene derivatives with aryl substituents on the thiophene rings by Stille or Suzuki coupling reaction

Abstract

Benzo[c]thiophene and its derivatives are attractive chromophores or π-building blocks for emitters, photosensitizers, and semiconductors used in organic optoelectronic devices. Herein, we provide facile synthetic methods of 1,1′-diaryl-4,4′-bibenzo[c]thiophene derivatives by Stille or Suzuki coupling reaction and their photophysical properties in the solution and the solid state, electrochemical properties, and X-ray crystal structures.