文献类型：期刊文献

英文题名：Enantiospeci fi c Photoresponsive Metallacages Based on Sterically Hindered Diarylethenes for Chiral Recognition

作者：Guo, Shaomeng[1,2];Li, Mengqi[1,2];Lian, Cheng[1,2];Zhang, Weiwei[1,2];Hu, Honglong[1,2];Lv, Ning[1,2];Zhu, Wei-Hong[1,2]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Inst Fine Chem, Feringa Nobel Prize Sci Joint Res Ctr, Inst Fine Chem,Frontiers Sci Ctr Materiobiol & Dyn, Shanghai 200237, Peoples R China

年份：2025

卷号：7

期号：4

起止页码：1005

外文期刊名：CCS CHEMISTRY

收录：WOS:【ESCI(收录号:WOS:001261779400001)】；

基金：Funding Information This work was supported by the National Natural Science Foundation of China (grant nos. 92356301, 22338006, 22305079, and 22108076) , Scienti fi c Committee of Shanghai (grant nos. 21JC1401700 and 15XD1501400) , China Postdoctoral Science Foundation (grant nos. 2019M661399, 2021M691006, and 2022M721143) and Shanghai Sailing Program (grant nos. 20YF1410500, 22YF1410400, and 23YF1409000) , Fundamental Re-search Funds for the Central Universities (grant no. JKJ01231555) .

语种：英文

外文关键词：photochromism; diarylethenes; metall- cages; intrinsic chirality; chiral recognition

摘要：Dynamic chiral materials with noncontactable, lightactivated, and reversible features have attracted considerable attention in photoprogrammable liquid crystals and chiral optoelectronic devices. However, most attempts to construct three-dimensional (3D) supramolecular chiral nanocages are limited to using nonresponsive chiral building blocks, which often results in the formation of architectures in shortage of tunable capacity, especially for the desirable dynamic, photoresponsive, and reversible chirality modulation. Here we report the construction of the first photoswitchable intrinsic chiral metallacages, ( P )- and ( M )-MOC1 and MOC2 based on sterically hindered diarylethene-based subcomponents, thereby achieving the unique light-driven reversible enantiospecific transformation between axial helicity and central asymmetry in 3D cages. Given the increasing cage tension during cyclization, it can be explored as a chiral encapsulant in nanocavity windows while possessing prominent enantioselectivity toward a pair of chiral camphor sulfonate guests. This work opens a new avenue to construct the unprecedented light-activated intrinsic chiral metallacages, aiming at their potential applications for chiral recognition, separation, and asymmetric catalysis.