Dynamic mechanostereochemical switching of a co-conformationally flexible [2]catenane controlled by specific ionic guests

Yueliang Yao, Yuen Cheong Tse, Samuel Kin-Man Lai, Yixiang Shi, Kam-Hung Low and Ho Yu Au-Yeung ()
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Yueliang Yao: The University of Hong Kong
Yuen Cheong Tse: The University of Hong Kong
Samuel Kin-Man Lai: The University of Hong Kong
Yixiang Shi: The University of Hong Kong
Kam-Hung Low: The University of Hong Kong
Ho Yu Au-Yeung: The University of Hong Kong

Nature Communications, 2024, vol. 15, issue 1, 1-9

Abstract: Abstract Responsive synthetic receptors for adaptive recognition of different ionic guests in a competitive environment are valuable molecular tools for not only ion sensing and transport, but also the development of ion-responsive smart materials and related technologies. By virtue of the mechanical chelation and ability to undergo large-amplitude co-conformational changes, described herein is the discovery of a chameleon-like [2]catenane that selectively binds copper(I) or sulfate ions and its associated co-conformational mechanostereochemical switching. This work highlights not only the advantages and versatility of catenane as a molecular skeleton in receptor design, but also its potential in constructing complex responsive systems with multiple inputs and outputs.

Date: 2024
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DOI: 10.1038/s41467-024-46099-w

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