Chemistry Letters · 1994 · 32 citations · 6 references
Natural SciencesChemistryCrystal StructureInorganic ChemistryMagnetic MaterialsAntiferromagnetismCoordination ChemistryFerromagnetismMagnetism Of Inorganic CompoundsMetal-ligand BondingTransition Metal ComplexesCoordination Compound MagnetismImidazole ChemistryMagnetic CouplingsMagnetic PropertiesMagnetic Properties Of Coordination ComplexesMagnetic Properties Of Transition Metal ComplexesMagnetism Of Transition Metal ComplexesManganese Chemistry
Abstract X-Ray analyses revealed that bis(hexafluoroacetylacetonato)manganese(II) forms with 1-[3- and 4-(N-tert-butyl-N-oxyaminophenyl)]imidazoles cyclic dimer complexes in cis coordination. The long-range magnetic couplings between the two spin 4/2’s resulting from the strongly antiferromagnetic short-range interaction between the Mn(II) and the ligated nitroxide radical are regiospecific: antiferromagnetic for 3- and ferromagnetic for 4-nitroxide substitution on the phenyl ring.
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Toward molecular magnets: the metal-radical approach
Andréa Caneschi, Dante Gatteschi, Roberta Sessoli et al. · Accounts of Chemical Research · 1989 · 853 citations