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A Heterotetranuclear [NiIIReIV3] Single-Molecule Magnet

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posted on 2006-11-08, 00:00 authored by José Martínez-Lillo, Donatella Armentano, Giovanni De Munno, Wolfgang Wernsdorfer, Miguel Julve, Francesc Lloret, Juan Faus
The reaction of [ReIVCl4(ox)]2- and fully solvated Ni2+ ions in a MeCN/i-PrOH mixture affords the heterotetranuclear complex (NBu4)4[Ni{ReCl4(ox)}3] where the rhenium precursor acts as a bidentate ligand toward the nicke(II) ion through the oxalate group. The mixed 3d−5d species exhibits intramolecular ferromagnetic coupling and it behaves like a single-molecule magnet.