Synthesis, Structure, and Properties of Di-μ-phenoxo-bridged Dinuclear CuIINiII and CuIICoII Complexes and Cyclic Di-μ-phenoxo-μ-amido-bridged Tetranuclear Cu2IIZn2II and Cu4IIComplexes Derived from the 1,2-Bis(2-oxidobenzamidato)benzenecuprate(II) Dianionic Ligand-Complex

Dipotassium N,N′-1,2-phenylenebis(2-carbamoyl-κN-phenolato-κO]cuprate(II)), K2[CuL], reacts with nickel(II), cobalt(II), and zinc(II) acetates, and 2,2′-bipyridine in a 1 : 1 : 2 molar ratio in methanol to yield the hetero-metal dinuclear complexes [CuLNi(bpy)2]·3MeOH (1·3MeOH), [CuLCo(bpy)2]·2DMF (2·2DMF), and [CuLZn(bpy)2]·1.5H2O (3), respectively. Crystal data for 1 : P1 (No. 2) with a = 15.969(2), b = 23.494(3), c = 12.705(2) A, α = 92.15(1), β = 91.652(10), γ = 101.521(9)°, V = 4663(1) A3, and Z = 4; 2, P21/c (No. 14) with a = 12.604(3), b = 24.364(5), c = 13.823(2) A, β = 94.49(1)°, V = 4231(1) A3, and Z = 4. 1 and 2 have a similar discrete di-μ-phenoxo-bridged dinuclear structure, in which the Cu(II) ion assumes a square-planar geometry with the N2O2 donors atoms consisting of two amido nitrogen and two phenoxo oxygen atoms of the tetradentate ligand, and the Ni(II) or Co(II) ion assumes an octahedral geometry with the two phenoxo oxygens of the tetradentate ligand and four nitrogen atoms from two ...

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