Fei-Long Hu,^ab   Hui-Fang Wang,^a   Dong Guo,^c   Hui Zhang,^c   Jian-Ping Lang*^ab （郎建平）and   Jonathon E. Beves*^d 

 ^a College of Chemistry, Chemical Engineering and Materials Science, Soochow University

^b State Key laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China

^c College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China

^d School of Chemistry, The University of New South Wales, Sydney, Australia

Chem. Commun.,2016,52, 7990-7993

A 3D coordination polymer {[Cd(L¹)(L²)]₂}_n (1) spontaneously resolves into enantiomorphic crystals of 1P and 1M without any chiral source. Bulk quantities of 1P and 1M can be predictably and reliably obtained by using chiral cyclohexane-1,2-diamine. 1 can be transformed into {[Cd(L¹)(L³)_0.5]₂}_n (2) by highly selective [2+2] photodimerization of L² ligands. The reverse process can be achieved by microwave irradiation. The cycloreversion/cycloaddition cycles result in chiroptical switching behavior.

链接：http://pubs.rsc.org/en/Content/ArticleLanding/2016/CC/C6CC03256G#!divAbstract