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Host-guest inclusion complexes formed between a symmetrical tetrasubstituted cucurbit[6]uril and glycine

Yuan, Shang Wei; Shan, Pei Hui; Yang, Mao Xia; Yang, Mao Xiao; Ma, Pei Hua; Prior, Timothy J.; Redshaw, Carl; Wei, Gang; Tao, Zhu; Xiao, Xin

Authors

Shang Wei Yuan

Pei Hui Shan

Mao Xia Yang

Mao Xiao Yang

Pei Hua Ma

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Dr Tim Prior T.Prior@hull.ac.uk
Senior Lecturer in Inorganic Chemistry

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

Gang Wei

Zhu Tao

Xin Xiao



Abstract

Herein, we have investigated the host-guest inclusion complexes formed on interaction of the symmetric tetramethyl-substituted cucurbit[6]uril (TMeQ[6]) with glycine (Gly) under different conditions. The interactions have been studied both in solution (by 1H NMR spectroscopy and mass spectrometry) and in the solid state by single crystal X-ray diffraction. The molecular structures of two products are reported, namely TMeQ[6]·(H2O)2(PO4)(NH3CH2COOH)2 (1) and TMeQ[6]·Ca(H2O)5·(Cl)3(NH3CH2COOH)·16H2O (2). Complex 1 adopts a hydrogen-bonded dimeric structure with two glycinium ions contained within a TMeQ[6] molecule with the NH3+ portions of the two molecules located just above the opposite rims of the bowl and forming hydrogen bonds with C-O. In 2, there are centrosymmetric dimers bridged by pairs of calcium ions.

Citation

Yuan, S. W., Shan, P. H., Yang, M. X., Yang, M. X., Ma, P. H., Prior, T. J., …Xiao, X. (2022). Host-guest inclusion complexes formed between a symmetrical tetrasubstituted cucurbit[6]uril and glycine. CrystEngComm, https://doi.org/10.1039/d2ce01308h

Journal Article Type Article
Acceptance Date Nov 10, 2022
Online Publication Date Nov 11, 2022
Publication Date 2022
Deposit Date Nov 11, 2022
Publicly Available Date Nov 12, 2023
Journal CrystEngComm
Electronic ISSN 1466-8033
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
DOI https://doi.org/10.1039/d2ce01308h
Keywords Condensed Matter Physics; General Materials Science; General Chemistry
Public URL https://hull-repository.worktribe.com/output/4117692