Bulletin of the Chemical Society of Japan · 1986 · 21 citations · 8 references
Natural SciencesChemistryInorganic ChemistryOrganic ChemistryOrganometallic ChemistryCoordination ChemistryCrystal ChemistryMagnetism Of Inorganic CompoundsMetal-ligand BondingTransition Metal ChemistryTransition Metal ComplexesComplexation ChemistryCoordination Compound MagnetismCopper ChemistryHeisenberg MagnetismHeisenberg ModelMagnetic Properties Of Coordination ComplexesMagnetic Properties Of Transition Metal ComplexesMagnetism Of Transition Metal Complexes
Abstract An unsymmetrical quadridentate copper(II) complex containing an imidazole moiety ([CuHL](ClO4)) reacts with [1,4,7,10-tetraazacyclododecane]copper(II) perchlorate and [2-[2-(2-pyridyl)ethyliminomethyl]pyridine]copper(II) perchlorate in the presence of one equivalent of triethylamine to give two discrete imidazolate-bridged binuclear copper(II) complexes, 1 and 2 respectively, where [H2L] denotes the 1:1:1 condensation product of acetylacetone, ethylenediamine, and 4-formylimidazole. The analysis of the cryomagnetic data(ca. 80–300 K) on the basis of the Heisenberg model of a binuclear structure gave the antiferromagnetic interaction parameter(2J) of −107.7 cm−1 for 2.
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