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Static and Dynamic Nanosheets from Selective Assembly of Geometric Macrocycle Isomers
Author(s) -
Wang Yanqiu,
Kim Yongju,
Lee Myongsoo
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201607143
Subject(s) - anthracene , supramolecular chemistry , planar , self assembly , rotaxane , structural isomer , sorting , nanostructure , materials science , chemistry , chemical physics , nanotechnology , crystallography , stereochemistry , computer science , photochemistry , crystal structure , computer graphics (images) , programming language
In contrast to the significant advances that have been made in the construction of two‐dimensional (2D) nanostructures, the rational modification from static to dynamic 2D sheets remains a great challenge. Static and dynamic sheets formed from selective self‐assembly of geometric macrocycle isomers based on anthracene units are presented. The self‐assembly of the cis isomer generates static planar sheets, whereas the trans isomer forms dynamic rolled sheets which are reversibly unrolled upon stimulation by a thermal signal. Furthermore, the mixed solution of the two isomers exhibits self‐sorting behavior, generating the coexistence of the two independent self‐assembled structures, the planar sheets and the folded scrolls. The self‐sorted supramolecular objects with considerable shape and size differences are able to be readily separated, one isomer from the other.