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A study of the interaction between inverted cucurbit[7]uril and symmetric viologens

Chen, Lixia; Gao, Zhongzheng; Gao, Zhong-Zheng; Bai, Dong; Chen, Li-Xia; Tao, Zhu; Xiao, Xin; Prior, Timothy J.; Redshaw, Carl

Authors

Lixia Chen

Zhongzheng Gao

Zhong-Zheng Gao

Dong Bai

Li-Xia Chen

Zhu Tao

Xin Xiao

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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[7]uril (iQ[7]) and a series of symmetric viologen derivatives bearing aliphatic substituents of variable length, namely dicationic dialkyl-4,4′-bipyridinium guests where the alkyl is CH₃(CH₂)n with n = 0 to 6, has been studied in aqueous solution by ¹H NMR spectroscopy, electronic absorption spectroscopy, isothermal titration calorimetry and mass spectrometry. In the case of both n = 5 (HV ²⁺) and 6 (SV²⁺), single crystal X-ray diffraction revealed the composition to be [(iQ[7])₂(HV)₂][CdCl₃Br][H₃O+]₂[H₂O]₁₂.₅ and (iQ[7])₂(C7-SV)₁.₅[CdCl₄]₄(H₃O⁺)₅(H₂O)₈, respectively, with both adopting an external B-type structure (the alkyl chains of the viologen reside within the iQ[7]).

Citation

Gao, Z., Chen, L., Gao, Z., Bai, D., Chen, L., Tao, Z., …Redshaw, C. (2017). A study of the interaction between inverted cucurbit[7]uril and symmetric viologens. RSC advances, 7(1), 461-467. https://doi.org/10.1039/c6ra24780f

Journal Article Type Article
Acceptance Date Nov 29, 2016
Publication Date Jan 5, 2017
Deposit Date Jan 9, 2017
Publicly Available Date Jan 9, 2017
Journal RSC advances
Print ISSN 2046-2069
Electronic ISSN 2046-2069
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 7
Issue 1
Pages 461-467
DOI https://doi.org/10.1039/c6ra24780f
Keywords Inverted cucurbit[7]uril, Symmetric viologens
Public URL https://hull-repository.worktribe.com/output/446917
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2017/RA/C6RA24780F#!divAbstract
Additional Information : This document is Similarity Check deposited; : Supplementary Information; : Crystal Structure Data; : Carl Redshaw (ORCID); : Carl Redshaw (ResearcherID); : The Royal Society of Chemistry has an exclusive publication licence for this journal; OPEN ACCESS: This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0); : Single-blind; : Received 5 October 2016; Accepted 29 November 2016; Version of Record published 5 January 2017

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Publisher Licence URL
https://creativecommons.org/licenses/by/4.0/



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