Highly reversible photomodulated hydrosoluble stiff-stilbene supramolecular luminophor induced by cucurbituril  

作　　者：Guoxing Liu Yixin Li Changming Tian Yongmei Xiao Lijie Liu Zhanqi Cao Song Jiang Xin Zheng Caoyuan Niu Yun-Lai Ren Liangru Yang Xianfu Zheng Yong Chen 

机构地区：[1]College of Science,Henan Agricultural University,Zhengzhou 450002,China [2]College of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450001,China [3]College of Chemistry,State Key Laboratory of Elemento-Organic Chemistry,Nankai University,Tianjin 300071,China

出　　处：《Chinese Chemical Letters》2024年第8期235-239,共5页中国化学快报（英文版）

基　　金：National Natural Science Foundation of China (No.21801063);Top-Notch Talents Program of Henan Agricultural University (No.30501049);Natural Science Foundation of Henan Province (No.232300420132);the Merit Funding for the Oversea Staff of Henan Province for financial support

摘　　要：A photochromic molecular rotor based on stiff-stilbene(SSB-FMR)was handily prepared through coupled reaction,and further self-assembled with cucurbit[8]uril(CB[8])to form a 2:2 quaternary supramolecu-lar complex(SSB-FMR/CB[8]).Significantly,the intervention of CB[8]on SSB-FMR achieved dual functions that assembly-induced emission enhancement and assembly-induced improvement of photoisomerized performance(especially reversibility)of stiff-stilbene molecular photoswitch.The supramolecular strategy further facilitated the assembly as a photoresponsive fluorescence switch with outstanding fatigue resis-tance,which was expediently applied in high-security-level QR code anti-counterfeiting and controllable lysosome targeted imaging.The study unprecedentedly provides a supramolecular method for highly effi-ciently improving photoisomerized performance especially reversibility of molecular photoswitches based on stiff-stilbene,and is of vital significance for the construction of intelligent materials with excellent ca-pability.

关 键 词：Host-guest complexation CUCURBITURIL Fluorescence switch Stiff-stilbene Fluorescence enhancement 

分 类 号：O641.3[理学—物理化学]