Pseudopolyrotaxanes of Cucurbit[6]uril: A Three‐Dimensional Network Self‐assembled by ClO4−(H2O)2 Water Clusters |
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| Authors: | Xuzhuo Sun Bo Li Jin Cao Jing Chen Ning Wang Dongjin Wan Haibo Zhang Xiaohai Zhou |
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| Institution: | 1. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China;2. College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China |
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| Abstract: | A pseudorotaxane of cucurbit6]uril (CB6]) with guest molecule N,N′‐hexamethylenebis (pyrazinyl perchlorate) (BPHP) was synthesized and characterized by 1H NMR spectra, IR, single crystal X‐ray diffraction analysis and thermogravimetric analysis. The structure of the pseudorotaxane (CB6]·BPHP) is stabilized by host‐guest hydrogen bonds. Self‐assembly of the pseudorotaxane produces infinite one‐dimensional and two‐dimensional networks with intermolecular hydrogen bonds. In the molecular packing of the CB6]·BPHP, ClO4?(H2O)2 water clusters serve as bridges to associate these pseudorotaxanes and form three‐dimensional networked pseudopolyrotaxane. |
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| Keywords: | cucurbituril pseudopolyrotaxane water clusters self‐assemble hydrogen bonds |
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