A linear trinuclear nickel complex containing the ligand, N,N′-bis(salicylidene)-1,3-diiminopropane(H2Salpn), is synthesized and characterized by elemental analysis, thermogravimetric analysis, IR spectroscopy and X-ray diffraction techniques. The title complex contains two different molecules, [Ni3(Salpn)2(CH3COO)2(DMF)2](1) and [Ni3(Salpn)2(CH3COO)2(CH3OH)2]·2CH3OH(2). Both molecules are constructed by two mononuclear NiSalpn units linked by a central Ni(II) ion and two bridging acetate anions, the difference between them is: molecule (1) contains two coordinated DMF molecules, while molecule (2) contains two coordinated methanol molecules and two hydrogen bond linked methanol molecules. All the Ni(II) ions are coordinated in disorted octahedral geometry. The crystal of the title complex(formula C86H106N10Ni6O22, Mr 1,984.07) belongs to triclinic system, space group Pī(2) with the following crystallographic parameters: a = 12.1506(11) Å, b = 13.3601(12) Å, c = 14.8600(13) Å, α = 84.894(2)°, β = 70.101(2)°, γ = 81.899(2)°, V = 2243.9(3) Å3, Z = 1, Dc = 1.468 g cm−3, μ = 1.310 mm−1, F(000) = 1,036, and the final R indices[[I > 2σ(I)]: R1 = 0.0545, wR2 = 0.1052.
A Schiff base complex containing two different trinulear nickel molecules is synthesized and characterized by elemental analysis, thermogravimetric analysis, IR spectroscopy and X-ray diffraction techniques.