Journal of the American Chemical Society · 2004 · 250 citations · 15 references
Natural SciencesChemistryPhysicsCrystal StructureMagnetic MaterialsMolecular PhysicsAntiferromagnetismCluster ChemistryExchange InteractionsMagnetic Properties Of SolidsMagnetic SusceptibilityMagnetism Of Inorganic CompoundsAntiferromagnetic CouplingMagnetic PropertiesMagnetic Properties Of ClustersMagnetization ReversalParamagnetic CentersParamagnetic SpeciesSingle-molecule MagnetismSingle-molecule Magnets
A pseudocubic, paramagnetic cluster of ReII and MnII, [{MnCl}4{Re(triphos)(CN)3}4], has been prepared, and its magnetic properties have been investigated. Antiferromagnetic coupling is observed between the "S = 1/2" ReII and S = 5/2 MnII centers resulting in an effective S = 8 ground state. AC susceptibility studies reveal that the molecule is a single-molecule magnet with an effective barrier for magnetization reversal of Ueff = 8.8 cm-1.
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Magnetic bistability in a metal-ion cluster
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