Synthesis of novel thieno-[3,4-b]-pyrazine-cored molecules as red fluorescent materials  

作　　者：Di Liu Yong-Heng Duan 

机构地区：[1]State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology

出　　处：《Chinese Chemical Letters》2013年第9期809-812,共4页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China(Nos.21274016 and 21072026);Fundamental Research Funds for the Central Universities(No.DUT13LK06)for financial support to this work

摘　　要：Two novel thieno-[3,4-b]-pyrazine-based molecules, TP-E and TP-O, were designed and synthesized for potential application as red fluorescent emitters. The bulky tetraphenylethylene groups were attached at the periphery of the thieno-[3,4-b]-pyrazine core to form the non-planar molecules, as efficient solid- state emitting materials. The peripheral groups were grafted to the emissive core through either a conjugated acetylene bond, or a non-conjugated ether bond. These molecules exhibit strnng red fluorescence in both dilute solutions and in thin films with large Stokes shifts of over 100 nm. The cyclic voltammetry measurements showed the reversible oxidation and reduction behavior for both compounds. All these properties indicate the two compounds are possible functional materials for use in ontoelectronic devices.Two novel thieno-[3,4-b]-pyrazine-based molecules, TP-E and TP-O, were designed and synthesized for potential application as red fluorescent emitters. The bulky tetraphenylethylene groups were attached at the periphery of the thieno-[3,4-b]-pyrazine core to form the non-planar molecules, as efficient solid- state emitting materials. The peripheral groups were grafted to the emissive core through either a conjugated acetylene bond, or a non-conjugated ether bond. These molecules exhibit strnng red fluorescence in both dilute solutions and in thin films with large Stokes shifts of over 100 nm. The cyclic voltammetry measurements showed the reversible oxidation and reduction behavior for both compounds. All these properties indicate the two compounds are possible functional materials for use in ontoelectronic devices.

关 键 词：Red fluorescent materials Thieno-[ 3 4-b ]-pyrazine Tetraphenylethylene Large Stokes shifts 

分 类 号：O626[理学—有机化学]