Summary
Four new trinuclear copper(II) complexes, [Cu(phen)-(NBzIm)] (ClO4) (1), [Cu(bpy)(NBzIm)](ClO4) (2), [Cu-(Me2-bpy)(NBzIm)](Ac)·1/2H2O (3) and [Cu(Me2-bpy)-(Im)](ClO4)·1/2H2O (4) (phen = 1, 10-phenanthroline, bpy = 2,2′-bipyridine, NBzIm = 6-nitrobenzimidazolate ion, Im=imidazolate ion) have been prepared and characterized by variable temperature magnetic susceptibility measurements. A weak antiferromagnetic spin exchange interaction operates between copper(II) ions, exchange integrals evaluated as J =-23.82 cm-1 for (1); and J=-21.91 cm-1 for (2).
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Jiang, ZH., Deng, CL., Liao, DZ. et al. Synthesis and magnetism of 6-nitrobenzimidazolate and imidazolate-bridged copper(II) complexes. Transition Met Chem 18, 345–347 (1993). https://doi.org/10.1007/BF00207961
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DOI: https://doi.org/10.1007/BF00207961