Homochiral design of titanium-organic cage for circularly polarized luminescence-based molecular detection  

作　　者：Guang-Hui Chen Yan-Ping He Yinghua Yu Qiao-Hong Li Jian Zhang 

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China

出　　处：《Science China Chemistry》2023年第9期2558-2562,共5页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (21935010, 92261108, 92161105);the China National Postdoctoral Program for Innovative Talents (BX2021316);the China Postdoctoral Science Foundation (2021M703217)。

摘　　要：Post-assembly modification strategy is used as an effective approach to improve the functional applications of metal-organic cages. The active vertex of the racemic tetrahedral Ti4L6(L = embonate) cages traps four chiral diamine chelated dinuclear silver ions, obtaining homochiral cages which exhibit helical perovskite stacks. Such a surface modification engineering enables the structural precise cages presenting homochirality and circularly polarized luminescence(CPL) response, further achieving enantioselective recognition toward chiral Camphorquinone molecules and displaying enhanced temperature-dependent effects of CPL output.

关 键 词：chiral recognition circularly polarized luminescence post-assembly modification titanium-organic cages 

分 类 号：O641.4[理学—物理化学]