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Highly selective absorption of polychloromethanes in perhydroxylated cucurbit[6]uril-based supramolecular assemblies

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Abstract

Two perhydroxylated cucurbit[6]uril-based supramolecular assemblies have been obtained via crystallization of perhydroxylated cucurbit[6]uril {(HO)12Q[6]} from aqueous HCl solutions of different concentrations. Single-crystal X-ray diffraction (unit cell) analysis revealed that (HO)12Q[6] molecules interacted with water molecules through hydrogen bonding, thereby forming solid supramolecular assemblies with different kinds of channels. These selected channels were formed from the stacking of (HO)12Q[6] molecules in a portal-to-portal manner and between the outer surfaces of (HO)12Q[6] molecules. Unlike normal or alkyl-substituted Q[n]-based supramolecular assemblies, which generally exhibit highly selective absorption of methanol, the (HO)12Q[6]-based supramolecular assemblies exhibit highly selective absorption of polychloromethanes.

Graphical abstract: Highly selective absorption of polychloromethanes in perhydroxylated cucurbit[6]uril-based supramolecular assemblies

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Publication details

The article was received on 11 Sep 2017, accepted on 30 Nov 2017 and first published on 01 Dec 2017


Article type: Letter
DOI: 10.1039/C7NJ03446F
Citation: New J. Chem., 2018, Advance Article
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    Highly selective absorption of polychloromethanes in perhydroxylated cucurbit[6]uril-based supramolecular assemblies

    X. Xia, K. Chen, Y. Yao, C. Shan, Z. Tao, Y. Zhang, Q. Zhou and G. Wei, New J. Chem., 2018, Advance Article , DOI: 10.1039/C7NJ03446F

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