Model studies toward trivalent cation binding by appropriately functionalized calix[4]arenes

Grote Gansey, Marcel H.B. and Verboom, Willem and Veggel van, Frank C.J.M. and Vetrogon, Victor and Arnaud-Neu, Françoise and Schwing-Weill, Marie-José and Reinhoudt, David N. (1998) Model studies toward trivalent cation binding by appropriately functionalized calix[4]arenes. Journal of the Chemical Society. Perkin transactions II, 1998 (11). pp. 2351-2360. ISSN 0300-9580

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Abstract:	Molecular modeling and molecular dynamics of a series of calix[4]arene tetracarboxylic acids and tricarboxylic acid monoamides revealed that in an aqueous environment the phenolic oxygen atoms do not participate in the complexation of Ac3+. This observation led to the design and synthesis of new calix[4]arene based ionophores, containing multiple glycine units, having an increased number of potential donor sites. Potentiometric titrations in methanol with La3+ as a non-radioactive model for Ac3+ indicated that, although the level of complexation is high for all ligands, a new calix[4]arene derivative 5 is superior at pH < 4.
Item Type:	Article
Copyright:	© Royal Society of Chemistry 1998
Faculty:	Science and Technology (TNW)
Research Group:	Molecular Nanofabrication (MNF)
Link to this item:	http://purl.utwente.nl/publications/11064
Official URL:	http://dx.doi.org/10.1039/a805950k
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Metis ID: 105976