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A general method of increasing the ground-state total spin value of a polynuclear 3d-metal complex is illustrated through selected examples from cobalt(II) and nickel(II) cluster chemistry that involves the dianion of the gem-diol form of di-2-pyridyl ketone and carboxylate ions as organic ligands. The approach is based on the replacement of hydroxo bridges, that most often propagate antiferromagnetic...
A systematic investigation of the CuCl 2 /Mebta (Mebta=1-methylbenzotriazole) reaction system is described, involving the determination of the influence of the Cu II :Mebta ratio, the nature of solvent and the presence of counterions on the identity of the reaction products. As a consequence, complexes [Cu 2 Cl 4 (Mebta) 4 ] (1), [CuCl 2 (Mebta) ...
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