期刊
CHEMICAL COMMUNICATIONS
卷 56, 期 92, 页码 14385-14388出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc06381a
关键词
-
资金
- National Natural Science Foundation of China [21702020, 21672102, 21871136]
Allosteric effects are common in biology, but have not been fully explored in the control of supramolecular polymerization. Herein, ditopic UPy derivatives with acyclic crown ether-like spacers were designed and synthesized, which can undergo supramolecular polymerization through quadruple hydrogen bonding. Upon the addition of K+, drastic molecular conformational change to the U-shape is induced by metal-coordination, reconfiguring remote UPy sites towards the formation of discrete cyclic dimers. Interestingly, the supramolecular polymerization can be restored by simply removing K+ by water-extraction.
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