Anion Receptor with Two Imidazolium Rings on the Glycoluril
Authors: Kim, Hyungil; In, Sungjae; Kang, Jongmin
Source: Supramolecular Chemistry, Volume 18, Number 2, April 2006 , pp. 141-145(5)
Publisher: Taylor and Francis Ltd
Abstract:We have synthesized an anion receptor with two imidazolium groups on the glycoluril. This receptor showed high affinity for Y-shaped anions such as acetate and benzoate. Although the association constants of these anions for the receptor 4 are too large to be estimated from 1 H NMR titration, the receptor 4 has at least 560-fold selectivity for acetate or benzoate over iodide and 360-fold selectivity over nitrate.
Document Type: Research article
Publication date: 2006-04-01