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A study of the interaction between inverted cucurbit[6]uril and symmetric viologens

Bai, Dong; Gao, Zhongzheng; Tao, Zhu; Xiao, Xin; Prior, Timothy J.; Wei, Gang; Liu, Qingyun; Redshaw, Carl

Authors

Dong Bai

Zhongzheng Gao

Zhu Tao

Xin Xiao

Gang Wei

Qingyun Liu

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Professor Carl Redshaw C.Redshaw@hull.ac.uk
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry



Abstract

The interaction between inverted cucuribit[6]uril (iQ[6]) and a series of symmetric viologens bearing aliphatic substituents, namely dicationic dialkyl-4,4′-bipyridinium guests where the alkyl substituent is CH3(CH2)n (n = 1, 3 and 5) or benzyl, has been studied in aqueous solution by 1H NMR spectroscopy, electronic absorption spectroscopy, Isothermal Titration Calorimetry and mass spectrometry. The viologen bearing C6H5CH2 substituents has also been investigated. In the case of the dialkyl-derived guests, single crystal X-ray diffraction, on crystals grown in the presence of CdCl2, revealed the compositions to be 2(C36H36N24O12), 4(C14H18N2),Cd5Br9.56Cl10.442(H2O).2(H3O); 2(C36H36N24O12),C18H26N2,2(CdCl4),36H2O and 2(C36H36N24O12),2(C11H17N),2(CdCl4),20H2O for the use of n = 1, 3 or 5 respectively. Thus, in the solid state, in the case of both BV2+ (n = 3) and HV2+ (n = 5), an interaction of viologen with iQ[6] was observed and the structure adopted is an external ‘dumbbell-type’ structure.

Journal Article Type Article
Publication Date Jul 7, 2018
Print ISSN 1144-0546
Electronic ISSN 1369-9261
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 42
Issue 13
Pages 11085-11092
APA6 Citation Bai, D., Gao, Z., Tao, Z., Xiao, X., Prior, T. J., Wei, G., …Redshaw, C. (2018). A study of the interaction between inverted cucurbit[6]uril and symmetric viologens. New journal of chemistry = Nouveau journal de chimie, 42(13), 11085-11092. https://doi.org/10.1039/c8nj01589a
DOI https://doi.org/10.1039/c8nj01589a
Keywords Materials Chemistry; General Chemistry; Catalysis
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2018/NJ/C8NJ01589A#!divAbstract
Copyright Statement © 2018 University of Hull
Additional Information : This document is Similarity Check deposited; : Supplementary Information; : Crystal Structure Data; : Xin Xiao (ORCID); : Timothy J. Prior (ORCID); : Carl Redshaw (ORCID); : Single-blind; : Received 2 April 2018; Accepted 31 May 2018; Accepted Manuscript published 1 June 2018; Advance Article published 8 June 2018; Version of Record published 25 June 2018

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