Syntheses and Structures of Two New Schiff Base Metal Complexes

The reaction of N,N?-bis(2-hydroxyacetophenone)-1,2-propanediamine (α,α?-Me- Salpd) with transition metal cations including CuII or NiII in methanol results in two complexes [Cu(α,α?-Me-Salpd)] 1 and [Ni(α,α?-Me-Salpd)] 2. Their crystal structures were determined by X-ray diffraction analysis. Crystal data for 1: monoclinic, space group P21/n, a = 12.3752(6), b = 10.5061(5), c = 26.5617(2) ?, β = 103.342(1)o, C38H40N4O4Cu2, Mr = 743.82, Z = 4, V = 3360.2(3) ?3, Dc = 1.470 g/cm3, μ = 1.313 mm-1, F(000) = 1544, R = 0.0681 and wR = 0.1555 for 4523 observed reflections (I > 2σ(I)); and those for 2: monoclinic, space group P21/n, a = 10.4207(2), b =12.4627(2), c = 25.7322(1) ?, β = 99.909(1)o, C38H40N4O4Ni2, Mr = 734.16, Z = 4, V = 3291.99(8) ?3, Dc = 1.481 g/cm3, μ = 1.192 mm-1, F(000) = 1536, R = 0.0766 and wR = 0.1873 for 3433 observed reflections (I > 2σ(I)).