Issue 19, 2000
From the journal:

Journal of the Chemical Society, Dalton Transactions

Study of the [CaM(C3H2O4)2(H2O)4]·nH2O [M = Mn, Fe or Co (n = 0) and Ni (n = 2)] systems: synthesis, structure, spectroscopic and magnetic properties

Izaskun Gil de Muro,a   Maite Insausti,a   Luis Lezama,a   M. Karmele Urtiaga,b   M. Isabel Arriortuab  and  Teófilo Rojo*a  

* Corresponding authors

a Departamento de Química Inorgánica, Facultad de Ciencias, Universidad del País Vasco, Apdo. 644, Bilbao, Spain
E-mail: qiproapt@lg.ehu.es

b Departamento de Mineralogía-Petrología, Facultad de Ciencias, Universidad del País Vasco, Apdo. 644, Bilbao, Spain

Abstract

The [CaM(mal)2(H2O)4] (M = Mn, Fe or Co; mal = C3H2O4) and [CaNi(mal)2(H2O)4]·2H2O compounds have been synthesized and characterized. X-Ray single crystal diffraction analysis was carried out on the [CaMn(C3H2O4)2(H2O)4] and [CaNi(C3H2O4)2(H2O)4]·2H2O complexes. The [CaM(C3H2O4)2(H2O)4] (M = Fe or Co) compounds are considered to be isostructural to the former one. The structures consist of three-dimensional networks of metal ions co-ordinated by malonate ligand acting as bridges. The transition metal and calcium ions exhibit octahedral and eight-co-ordination, respectively. Thermogravimetric studies confirm the presence of both co-ordinated and hydrated water molecules. Spectroscopic measurements show high spin octahedral symmetries for the transition metal ions. Magnetic measurements reveal the presence of weak antiferromagnetic interactions in all compounds.

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Article information

DOI
https://doi.org/10.1039/B005661H
Article type
Paper
Submitted
13 Jul 2000
Accepted
21 Jul 2000
First published
07 Sep 2000

J. Chem. Soc., Dalton Trans., 2000, 3360-3364

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Study of the [CaM(C3H2O4)2(H2O)4]·nH2O [M = Mn, Fe or Co (n = 0) and Ni (n = 2)] systems: synthesis, structure, spectroscopic and magnetic properties

I. G. de Muro, M. Insausti, L. Lezama, M. K. Urtiaga, M. I. Arriortua and T. Rojo, J. Chem. Soc., Dalton Trans., 2000, 3360 DOI: 10.1039/B005661H

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