Martinez Belmonte, M. and Price, D.J. (2010) Copper(II) complexes with a flexible oxamato ligand. Transition Metal Chemistry, 35(1), pp. 33-40. (doi: 10.1007/s11243-009-9292-y)
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Abstract
We report on a convenient synthesis of the ligand precursor, diethylethylene-1,2-bis(oxamate), (Et2H2oeo, 1), and show how a partial and preferential hydrolysis of the ester group can give rise to the dianionic ligand, (H2oeo)2−. Reaction of this ligand with Cu(II) affords the neutral dimeric species, [Cu2(H2oeo)2], which has a low aqueous solubility. We describe the crystal structure of the hydrate Cu2(H2oeo)2(H2O)4 (2) and report magnetic studies that show a weak exchange interaction in the solid. Under more basic conditions and in the presence of Cu(II) ions, we are able to avoid amide cleavage and yet deprotonate the amide group, resulting in the formation of the highly soluble [Cu(Hoeo)2]4− complex anion. The structure of (NBu4)4[Cu(Hoeo)2](H2O)4 (3) is described and compared with the recently reported anhydrous phase.
Item Type: | Articles |
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Additional Information: | The original publication is available at www.springerlink.com |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Price, Dr Daniel |
Authors: | Martinez Belmonte, M., and Price, D.J. |
Subjects: | Q Science > QD Chemistry |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Transition Metal Chemistry |
Publisher: | Springer |
ISSN: | 0340-4285 |
ISSN (Online): | 1572-901X |
Published Online: | 16 October 2009 |
Copyright Holders: | Copyright © 2010 Springer |
First Published: | First published in Transition Metal Chemistry 35(1):33-40 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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