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Issue 25, 2019
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Enhancing selectivity of cation exchange with anion receptors

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Abstract

We introduce a new supramolecular strategy where an anion receptor modifies the selectivity ligands for cations. This is demonstrated by combining the classic anion receptor calix[4]pyrrole (C4P) and a phenolic ligand, which leads to remarkable enhancement in selectivity for Cs+ over Na+. Crystal structures and molecular simulations confirmed the persistent formation of ion-pair C4P–Cs+–phenolate complexes, while the smaller Na+ ion cannot efficiently interact.

Graphical abstract: Enhancing selectivity of cation exchange with anion receptors

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Publication details

The article was received on 11 Jan 2019, accepted on 05 Feb 2019 and first published on 13 Feb 2019


Article type: Communication
DOI: 10.1039/C9CC00287A
Citation: Chem. Commun., 2019,55, 3590-3593

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    Enhancing selectivity of cation exchange with anion receptors

    N. J. Williams, S. Roy, C. O. Reynolds, R. Custelcean, V. S. Bryantsev and B. A. Moyer, Chem. Commun., 2019, 55, 3590
    DOI: 10.1039/C9CC00287A

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