The influences of the packing ligand on spin state and magnetic interactions in new oxalates with 3d-transition metals

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 2007 English Publisher:Elsevier BVJournal:Journal of Magnetism and Magnetic Materials, volume 310, pages 1,452-1,454 (issn: 0304-8853,

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Authors: Filoti, George; Bartolomé, Juan; Kuncser, Victor; Mindru, Loana; Patron, Luminita;

doi: 10.1016/j.jmmm.2006.10.465

handle: 10261/19240

The influences of the packing ligand on spin state and magnetic interactions in new oxalates with 3d-transition metals

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Abstract

Two new hetero tri-nuclear oxalates (NH4)8[Fe2Co(C2O4)8]·6H2O and [Fe2Co(C2O4)2(OH)4]·2H2O have been synthesized. The compound presented opposite behaviour in ac-susceptibility measurements, different frustration level and spin–orbit coupling in magnetization ones. The Mössbauer approach pointed to local interactions governed by metal-oxalate strongly coupled unit. The data were interpreted in terms of role of positive (NH4) or negative (OH) bridging ligands on general magnetic properties.

3 figures, 1 table.

Peer reviewed

Related Organizations

Spanish National Research Council
Spain
National Institute of Materials Physics
Romania
Romanian Academy
Romania

Keywords

Tri-nuclear complexes, Long and short range order, Molecular magnetism

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