Coordination Behavior of 3-Ethoxycarbonyltetronic Acid towards CuII and CoII Metal IonsReport as inadecuate

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Bioinorganic Chemistry and ApplicationsVolume 2008 2008, Article ID 547915, 6 pages

Research Article

Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Zografou Campus, 15773 Athens, Greece

Institute of Materials Science, NCSR ‘Demokritos’, 15310 Aghia Paraskevi Attikis, Greece

Laboratory of Inorganic Chemistry, Department of Chemistry, University of Athens, Panepistimiopolis, 15771 Athens, Greece

Received 10 October 2008; Accepted 5 November 2008

Academic Editor: Elena Milaeva

Copyright © 2008 Giorgos Athanasellis et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Tetronic acids, 4-hydroxy-5H-furan-2-ones, constitute a class of heterocyclic compounds with potent biological and pharmacological activity. The ??,???-tricarbonyl moiety plays an integral role in biological systems and forms a variety of metal complexes. In this report, we present the complexation reactions of 3-ethoxycarbonyl tetronic acids with acetates and chlorides of CuII and CoII. These complexes have been studied by means of EPR spectroscopy and magnetic susceptibility measurements. From the obtained results, a preliminary complexation mode of the ligand is proposed.

Author: Giorgos Athanasellis, Georgia Zahariou, Stefanos Kikionis, Olga Igglessi-Markopoulou, and John Markopoulos



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