Photo-induced morphology transition of a multifunctional photochromic bisthienylethene molecule with switchable aggregation-induced emission

作     者：Sheng Wang Fang Wang Chengpeng Li Teng Li Derong Cao Xiang Ma 

作者机构：Key Laboratory of Applied Chemistry and School of Chemistry and Chemical Engineering Development Center for New Materials Engineering & Technology in Universities of Guangdong Lingnan Normal University School of Chemistry and Chemical Engineering State Key Laboratory of Luminescent Materials and DevicesSouth China University of Technology Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry and Molecular EngineeringEast China University of Science & Technology 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2018年第61卷第10期

页      面：1301-1306页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China (21372194, 21722603, 21476075) the Innovation Program of Shanghai Municipal Education Commission and the Guangdong Yangfan Talent Plan (2013) the Research Funds of Lingnan Normal University (QL1402) 

主　　题：photochromism bisthienylethene aggregation-induced emission 

摘      要：A novel multifunctional molecule BTE-CNPH was designed and synthesized by connecting 2-(3′,5′-bis(trifluoromethyl)-biphenyl-4-yl)-2-cyanovinyl group to both side of the bisthienylethene(BTE), which exhibited excellent aggregation-induced emission(AIE) and bistable photochromism. High-contrast(60) reversible fluorescence switching was achieved in the 1 D nanowires, solid of BTE-CNPH and also in a polymethyl methacrylate(PMMA) film loaded with 1% BTE-CNPH under the alternative irradiation by 365 nm and visible light. Interestingly, the nanowire-like assembly morphology of BTE-CNPH in aqueous tetrahydrofuran(THF) solution of specific concentration was observed to translate into amorphous pieces gradually upon prolonged irradiation by the 365 nm, accompanying with photo-tunable AIE emission.