Publication Type
Journal
Journal Name
Chemical Communications
Publication Date
Page Numbers
3590 to 3593
Volume
55
Issue
25
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.
