Synthesis and optical properties of silyl-bridged H-shaped multi-thiophenes

The H-shaped molecules with bis(tert-butyldimethylsilylbithienyl)silyl and bis(tert-butyldimethylsilylterthienyl)silyl units have been synthesized. UV-Vis absorption and fluorescence properties of these molecules have been investigated. The disilanylene group in the H-shaped molecule with bis(tert-butyldimethylsilylbithienyl)silyl units plays an important role in enhancing the quantum efficiency in solution.88