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

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 efficien...

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Bibliographic Details
Published in:Chinese chemical letters 2013-09, Vol.24 (9), p.809-812
Main Authors: Liu, Di, Duan, Yong-Heng
Format: Article
Language:English
Subjects:
Large Stokes shifts
Red fluorescent materials
Tetraphenylethylene
Thieno-[3,4-b]-pyrazine
分子
功能性材料
合成
吡嗪
噻吩
氧化还原行为
红色荧光
荧光材料
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Summary: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.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2013.05.024