Synthesis and Characterization of New Thieno[3,2-b]thiophene Derivatives

Abstract

Three derivatives of thieno[3,2-b]thiophene end-capped with phenyl units have been synthesized and characterized by MALDI TOF mass spectroscopy, elemental analysis, UV-vis absorption spectroscopy and thermogravimetric analysis (TGA). All compounds were prepared using Pd-catalyzed Stille or Suzuki coupling reactions. Optical measurements and thermal analysis revealed that these compounds are promising candidates for p-type organic semiconductor applications.

Keywords

• thieno[3,2-b]thiophene
• 2,5-dibromothieno[3,2-b]thiophene
• 4-dodecyl-phenylboronic acid
• 4-(trifluoromethyl)phenylboronic acid