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The synthesis of a novel catenated system which is dense in cationic hydrogen bonding imidazolium units is described. The interlocked host system displays a preference for binding of bromide over other halides, overcoming basicity and Hofmeister trends, under aqueous conditions. This is the first example of an imidazolium-based catenane acting as an anion host through C-H hydrogen bonding.

Original publication

DOI

10.1039/d0cc06299e

Type

Journal article

Journal

Chem Commun (Camb)

Publication Date

05/01/2021

Volume

57

Pages

101 - 104