Cooperative anion binding and electrochemical sensing by modular podands

Abouderbala, L.O., Belcher, W.J., Boutelle, M.G., Cragg, P.J., Steed, J.W., Turner, D.R. and Wallace, K.J. (2002) Cooperative anion binding and electrochemical sensing by modular podands Proceedings of the National Academy of Sciences of the United States of America, 99 (8). pp. 5001-5006. ISSN 1091-6490

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Abstract

A series of podands based on two or three hydrogen bonding “arms” situated in mutually ortho, meta, or para relationships about an aryl core have been prepared, and their affinities for simple inorganic anions were measured. Of the two-arm hosts the meta compound and to a lesser extent the ortho host exhibit a cooperative anion binding effect. The two arms function essentially independently in the para derivative. The mutually meta three-arm host shows dramatically enhanced cooperative binding. Conformational changes within the meta two-arm host result in significantly enhanced electrochemical anion sensing compared with the more conformationally rigid three-arm host.

Item Type: Journal article
Additional Information: Freely available at HighWire Publishing and PubMed Central.
Subjects: F000 Physical Sciences > F100 Chemistry
DOI (a stable link to the resource): doi: 10.1073/pnas.082633299
Faculties: Faculty of Science and Engineering > School of Pharmacy and Biomolecular Sciences
Depositing User: editor spbs
Date Deposited: 08 Nov 2007
Last Modified: 18 Jun 2010 11:28
URI: http://eprints.brighton.ac.uk/id/eprint/460

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