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A [Mn<sup>III</sup><sub>3</sub>O]<sup>7+</sup>Single-Molecule Magnet: the Anisotropy Barrier Enhanced by Structural Distortion
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2008
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Trinuclear Manganese ComplexMagnetic PropertiesEngineeringLow-dimensional MagnetismMagnetic ResonanceChemistryInorganic MaterialMagnetic MaterialsMagnetoresistanceInorganic CompoundMagnetismQuantum MaterialsOxime LigandMaterials ScienceMolecular MagnetismInorganic ChemistryPhysicsAnisotropy Barrier EnhancedMagnetic MaterialCrystallographyInorganic SynthesisFerromagnetismMolecule-based MagnetNatural SciencesCoordination ComplexCondensed Matter PhysicsApplied PhysicsClo 4Magnetic Property
A trinuclear manganese complex, [Mn 3O(Me-salox) 3(2,4'-bpy) 3(ClO 4)].0.5MeCN ( 1.0.5MeCN; Me-H 2salox = 2-hydroxyphenylethanone oxime), has been synthesized and characterized structurally as a [Mn (III) 3(mu 3-O)] (7+) core. Structural distortion by the twisting of the oxime ligand dominates ferromagnetic interactions within three Mn ions to give an S = 6 ground state as well as to enhance the anisotropy barrier U eff to 37.5 K.