Structural analysis of bis{(N,N -dimethylformamide) (μ-formato)[μ-bis(salicylidene)-1,3-propanediaminato] nickel(II)}copper(II) and zinc(II) monohydrate hetero-trinuclear complexes

The two linear hetero-trinuclear metallic complexes with Cu2+, Ni2+ and Zn2+ ions, [CuNi2 {(CHO2)(SALPD)[(CH3)(2)NCHO]}(2)],(I) and [ZnNi2{(CHO2)(SALPD)[(CH3)(2)NCHO]}(2)],(II), form crystals which belong to the monoclinic system, space group P2(1)/c, with unit cell dimensions a = 10.537(4), b = 16.612(5), c = 13.837(3) Angstrom, beta = 111.09(5)degrees, V = 2259.8(12) Angstrom(3) in (II) and a = 10.525(4), b = 16.658(5), c = 13.826(3)Angstrom, beta = 111.11(5)degrees,V = 2261.4(8) Angstrom(3) in (II), respectively. The coordinations around the M (Ni2+, Cu2+, Zn2+) ions in the title complexes are distorted octahedrals. The stereochemistries of the bridge ligands, linking to the metal ions each other, are changed between Ni...M (Cu2+, Zn2+) distances. The Ni...M (Cu2+, Zn2+) distances are 3.0469(13) and 3.0645(14), respectively. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.