Anion sensing using colorimetric amidourea based receptors incorporated into a 1,3-disubstituted calix[4]arene

Quinlan, E., Matthews, S. E. and Gunnlaugsson, T. (2006) Anion sensing using colorimetric amidourea based receptors incorporated into a 1,3-disubstituted calix[4]arene. Tetrahedron Letters, 47 (52). pp. 9333-9338. ISSN 0040-4039

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Abstract

The synthesis of amidourea-based colorimetric anion sensors I and 2 and the evaluation of these sensors using anions such as acetate (CH3CO2-), fluoride (F-), hydrogen phosphate (H2PO4-) and hydrogenpyrophosphate (pyr) in DMSO is described. While I has a single amidourea moiety, 2 has two such receptors incorporated into a lower-rim 1,3-disubstituted calix[4]arene scaffold. Whilst both sensors gave rise to red shifts in their absorption spectra upon anion recognition, the sensing of F- and pyr gave rise to large changes with concomitant colour changes from yellow to purple, which were visible to the naked eye. (c) 2006 Published by Elsevier Ltd.

Item Type: Article
Faculty \ School: Faculty of Science > School of Pharmacy
Depositing User: Rachel Smith
Date Deposited: 26 May 2011 10:38
Last Modified: 21 Apr 2020 19:50
URI: https://ueaeprints.uea.ac.uk/id/eprint/31452
DOI: 10.1016/j.tetlet.2006.10.112

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