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Light‐Induced Cyclization of A [ c 2]Daisy‐Chain Rotaxane to Form a Shrinkable Double‐Lasso Macrocycle
Author(s) -
Rao SiJia,
Ye XuHao,
Zhang Qi,
Gao Chuan,
Wang WenZhi,
Qu DaHui
Publication year - 2018
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.201800114
Subject(s) - chemistry , rotaxane , daisy chain , double bond , chain (unit) , coumarin , stereochemistry , lasso (programming language) , photochemistry , crystallography , polymer chemistry , supramolecular chemistry , organic chemistry , crystal structure , computer hardware , physics , astronomy , world wide web , computer science
A pH‐responsive double‐lasso macrocycle has been successfully obtained directly from a [ c 2]daisy chain rotaxane via a photodimerization reaction of two terminal coumarin ligands. The size of the double‐lasso macrocycle could be tuned by acid/base stimuli with the reversible muscle‐like extension/contraction of the [ c 2]daisy chain unit.