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 Cu 2+ , Ni 2+ and Zn 2+ ions, [CuNi 2 {(CHO 2 )(SALPD)[(CH 3 ) 2 NCHO]} 2 ],(I) and [ZnNi 2 {(CHO 2 )(SALPD)[(CH 3 ) 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) Å, β=111.09(5)°, V=2259.8(12) Å 3 in (I) and a=10.525(4), b=16.658(5), c=13.826(3) Å, β=111.11(5) °, V=2261.4(8) Å 3 in (II), respectively. The coordinations around the M (Ni 2+ , Cu 2+ , Zn 2+ ) 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 (Cu 2+ , Zn 2+ ) distances. The Ni…M (Cu 2+ , Zn 2+ ) distances are 3.0469(13) and 3.0645(14), respectively. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)