Synthesis, structure and photophysical properties of regioisomeric sulfone-bridged pyrene–thienoacenes
摘要:
Three regioisomeric sulfone-bridged phenyl-pyrene derivatives have been synthesized by post-oxidizing the corresponding sulfide-bridged phenyl-pyrene isomers. The photophysical properties and two crystal structures of these sulfones were investigated and compared with those of their parent compounds. These sulfones display all remarkable solid-state photoluminescence efficiencies as well as good fluorescence quantum yield in solutions. (C) 2015 Elsevier B.V. All rights reserved.
Synthesis, Structure, and Opto-electronic Properties of Regioisomeric Pyrene–Thienoacenes
摘要:
Three regioisomeric sulfur-bridged pyrene-thienoacenes (PTAs) have been synthesized. The crystal structures and optoelectronic properties of these ring-fused PTAs and their ring-opened precursors have been fully investigated. Among these isomers, the [3,4]-extended compound (4-S-PTA) shows the most pronounced spectral red-shift and highest quantum yield as well as large transistor mobility.