文献类型：期刊文献

英文题名：Synthesis and Characterization of Imine-Derived Diarylethene Photoswitches Exhibiting Enhanced Photochromic Performance

作者：Wu, Huiping[1,2];Cai, Yudong[3];Chen, Shangtao[3];Gu, Ruirui[1,2]

机构：[1]East China Univ Sci & Technol, Inst Fine Chem, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Inst Fine Chem,Sch Chem & Mol Engn,Joint Int Res L, Shanghai, Peoples R China;[3]PetroChina Petrochem Res Inst, Beijing, Peoples R China

年份：2025

卷号：10

期号：48

外文期刊名：CHEMISTRYSELECT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001640714400001)】；

基金：This work was supported by the National Natural Science Foundation of China (Grants 22205064, 22571084), Science and Technology Commission of Shanghai Municipality (24DX1400200). This work was also sponsored by CNPC Innovation Foundation (2024DQ02-0410).

语种：英文

外文关键词：dithienylethene; imine; photoswitch; visible light

摘要：The integration of dynamic covalent bonds with photoswitches represents a rapidly advancing frontier in the development of dynamic covalent materials with photo-adaptivity. We report the synthesis and characterization of three imine-derived diarylethene photoswitches DAE1-DAE3. All photoswitches demonstrate excellent photochromic performance. Notably, the nitro-substituted photoswitch DAE1 exhibits rapid bidirectional response, a high ring-closing quantum yield of up to 0.83, and ultrahigh photoconversion efficiency under visible light irradiation, achieving a photocyclization yield of 96% under violet light and a quantitative photocycloreversion yield under green light. Additionally, DAE1 displays great fatigue resistance and thermal stability. These photochromic compounds featuring dynamic imine bonds hold considerable potential for designing photo-responsive constitutional dynamic systems.