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Anion recognition properties of the neutral receptors bearing amide macrocycle

✍ Scribed by X.-F. Shang; Z.-S. Cai; H.-K. Lin; H. Lin

Publisher: Journal of Heterocyclic Chemistry
Year: 2008
Tongue: English
Weight: 382 KB
Volume: 45
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570450512

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✦ Synopsis

Abstract

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Neutral classes of amide‐based macrocycle have been synthesized and the anion binding abilities are assessed by UV‐vis titration and ^1^H nmr experiments. Results indicate that higher anion binding abilities are observed for H~2~PO~4~^−^, F^−^ and AcO^−^, but almost no affinity for Cl^−^, Br^−^, I^−^ and OH^−^. The ^1^H nmr spectra shows that the interactions between the receptors and fluoride anion depend on two factors, respectively: one is depend on hydrogen bonding, the other on deprotonation.

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