Enhancing selectivity of cation exchange with anion receptors12. Issue 25 (13th February 2019)

• Record Type: Journal Article
• Authors: Williams, Neil J.; Roy, Santanu; Reynolds, Campbell O.; Custelcean, Radu; Bryantsev, Vyacheslav S.; Moyer, Bruce A.
• Is Part Of: Chemical communications. Volume 55:Issue 25(2019)
• Page Start: 3590
• Page End: 3593
• Publication Date: 2019-02-13
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c9cc00287a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Introducing a new supramolecular approach where anion receptors are used to modify the selectivity of ligands for cations. 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.