自组装分子笼的光开关催化作用

DiNardi Ray G, Rasheed Samina, Capomolla Simona S, Chak Man Him, Middleton Isis A, Macreadie Lauren K, Violi Jake P, Donald William A, Lusby Paul J, Beves Jonathon E

School of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia.

EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, Scotland EH9 3FJ, U.K.

J Am Chem Soc. 2024 Aug 7;146(31):21196-21202. doi: 10.1021/jacs.4c04846. Epub 2024 Jul 25.

A heteroleptic [PdLL'] coordination cage containing a photoswitchable azobenzene-derived ligand catalyzes the Michael addition reaction between methyl vinyl ketone and benzoyl nitromethane within its cavity. The corresponding homoleptic cages are catalytically inactive. The heteroleptic cage can be reversibly disassembled and reassembled using 530 and 405 nm light, respectively, allowing catalysis within the cage to be switched and at will.

一种含有光开关偶氮苯衍生配体的杂配体[PdLL']配位笼在其腔内催化甲基乙烯基酮与苯甲酰基硝基甲烷之间的迈克尔加成反应。相应的同配体笼没有催化活性。该杂配体笼可以分别使用530纳米和405纳米的光进行可逆拆解和重新组装，从而能够随意开启和关闭笼内的催化作用。