Volume 30, Issue 4 pp. 941-946
Full Paper

Pseudopolyrotaxanes of Cucurbit[6]uril: A Three-Dimensional Network Self-assembled by ClO4(H2O)2 Water Clusters

Xuzhuo Sun

Xuzhuo Sun

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China

College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China

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Bo Li

Bo Li

College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China

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Jin Cao

Jin Cao

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China

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Jing Chen

Jing Chen

College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China

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Ning Wang

Ning Wang

College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China

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Dongjin Wan

Dongjin Wan

College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, Henan 450001, China

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Haibo Zhang

Corresponding Author

Haibo Zhang

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China, Tel.: +86-027-87218534; Fax: +86-027-87218534Search for more papers by this author
Xiaohai Zhou

Corresponding Author

Xiaohai Zhou

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China

College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China, Tel.: +86-027-87218534; Fax: +86-027-87218534Search for more papers by this author
First published: 19 January 2012
Citations: 9

Abstract

A pseudorotaxane of cucurbit[6]uril (CB[6]) 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 (CB[6]·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 CB[6]·BPHP, ClO4(H2O)2 water clusters serve as bridges to associate these pseudorotaxanes and form three-dimensional networked pseudopolyrotaxane.

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