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.
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)。
