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Issue 23, 2005
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Tetrakis(imidazolium) macrocyclic receptors for anion binding

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Abstract

New (tetrakis)imidazolium macrocyclic receptor systems of variable cavity size have been synthesised by stepwise alkylation reactions of bis(imidazolium) precursor compounds. Proton NMR titration studies reveal the macrocycles to strongly bind halide and benzoate anions, with two receptor systems displaying notable selectivity for fluoride in competitive acetonitrile–water (9 : 1) solvent media.

Graphical abstract: Tetrakis(imidazolium) macrocyclic receptors for anion binding

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Article information


Submitted
15 Jul 2005
Accepted
10 Oct 2005
First published
31 Oct 2005

Org. Biomol. Chem., 2005,3, 4201-4208
Article type
Paper

Tetrakis(imidazolium) macrocyclic receptors for anion binding

W. W. H. Wong, M. S. Vickers, A. R. Cowley, R. L. Paul and P. D. Beer, Org. Biomol. Chem., 2005, 3, 4201
DOI: 10.1039/B510068B

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