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Título : Synthesis of mixed cobalt–nickel oxydiacetate compounds: The X-ray characterization of [Co0.4Ni0.6(oda)(H2O)3] · 1.5H2O
Autor : Grirrane, Abdessamad, Pastor, Antonio, Álvarez, Eleuterio, González, Manuel, Galindo, Agustín
Palabras clave : Cobalt
Coordination chemistry
Crystal structures
Fecha de publicación : 24-Mar-2007
Editor: Elsevier
Resumen: Mixed cobalt–nickel oxydiacetate [CoxNi1−x(oda)(H2O)3] · 1.5H2O compounds (; x = 0.3, 0.4, 0.6) were synthesized from the reaction of aqueous solutions of a mixture of nickel dichloride and cobalt dichloride with a 1:1 mixture of Na2CO3 and oxydiacetic acid, O(CH2COOH)2. In particular, compound [Co0.4Ni0.6(oda)(H2O)3] · 1.5H2O (1) was characterized by single-crystal X-ray analysis. Complex 1 is a co-crystallization of [Ni(oda)(H2O)3] · 1.5H2O and [Co(oda)(H2O)3] · 1.5H2O compounds, the latter species being a new hydrated form of cobalt oxydiacetate that shows a fac-coordination for the oda ligand. These compounds can be used for the preparation of mixed metal oxides. For instance, thermal decomposition of 1, carried out under a nitrogen atmosphere, produces essentially Co0.4Ni0.6O oxide.
Descripción : 7 páginas, 4 figuras, 3 tablas, 2 esquemas.
Versión del editor:
ISSN: 0277-5387
DOI: 10.1016/j.poly.2007.03.020
Citación : Polyhedron 26(13): 3343-3349 (2007)
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