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https://hdl.handle.net/2440/61220
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Type: | Journal article |
Title: | Silica-attached molecular receptor complexes for benzoates and naphthoates |
Author: | Hodyl, J. Lincoln, S. Wainwright, K. |
Citation: | Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2010; 68(3-4):261-270 |
Publisher: | Kluwer Academic Publ |
Issue Date: | 2010 |
ISSN: | 1388-3127 0923-0750 |
Statement of Responsibility: | Jozef A. Z. Hodyl, Stephen F. Lincoln and Kevin P. Wainwright |
Abstract: | A series of cyclen (1,4,7,10-tetraazacyclododecane) derived molecular receptors for aromatic oxoanions, that are activated by complexation with Cd(II), have been covalently linked to 3-(glycidoxy)propyl-functionalised silica gel (70–230 mesh). These immobilised receptor complexes are highly effective for the sequestration of o-hydroxybenzoates and 2-naphthoate from aqueous solution, achieving a >80% saturation level by stirring the material in the aqueous solution for 1 h at pH 7.00 and 298 K. Examination of the uptake levels of a variety of different benzoates and naphthoates suggests that the retention mechanism involves a combination of classical hydrogen bonding and non-classical, water mediated, O–H···π hydrogen bonding. Contrary to expectations, attachment of hydroxy terminated polyether chains to the periphery of the receptor complex diminished the level of uptake. |
Keywords: | Inclusion complex Hydroxybenzoates Naphthoates Cyclen derivatives Silica attachment |
Rights: | © Springer Science+Business Media B.V. 2010 |
DOI: | 10.1007/s10847-010-9782-8 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1007/s10847-010-9782-8 |
Appears in Collections: | Aurora harvest 5 Chemistry publications Environment Institute publications |
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