2-Iodo-imidazolium receptor binds oxoanions via charge-assisted halogen bonding.

Abstract

A detailed (1)H-NMR study of the anion binding properties of the 2-iodo-imidazolium receptor 1 in DMSO allows to fully attribute the observed affinities to strong charge-assisted C-I···X(-) halogen bonding (XB). Stronger binding was observed for oxoanions over halides. Phosphate, in particular, binds to 1 with an association constant of ca. 10(3) M(-1… (More)
DOI: 10.1039/c1ob06524f

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