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)

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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.

Keywords: Carboxylate selective; Anion receptor; Imidazolium ring; Glycoluril

Document Type: Research article

DOI: http://dx.doi.org/10.1080/10610270600564702

Affiliations: 1: Sejong University, Department of Applied Chemistry, Seoul, 143-747, South Korea

Publication date: 2006-04-01