Synthesis and crystal structure of a mononuclear Zn(II) complex with tridentate Schiff base, Zn(C12H18N2O)(NCS)2

The title complex Zn(HL)(NCS)(2) (C14H18N4OS2Zn, M-r = 387.81, HL = N-(3-dimethyl-aminopropyl)-salicylaldimine) has been synthesized by the reaction of ZnSO4 center dot 7H(2)O with the Schiff base N-(3-dimethylaminopropyl)-salicylaidimine derived from the condensation reaction of 3-dimethylamino-1-propylamine with salicyladehyde. It crystallizes in the monoclinic system, space group P2(1)/n with a = 9.8360(8), b = 14.930(1), c = 12.277(1) angstrom, beta = 101.455(2)degrees, V = 1767.0(3) angstrom(3), Z = 4, F(000) = 800, D-c = 1.45 8 g/cm(3) and mu(MoK alpha) = 1.631 mm(-1). The structure was refined to R 0.0463 and wR = 0. 1065 for 2681 observed reflections (I > 2 sigma(I)). Crystal analyses revealed that. the Zn(H) atom is coordinated by two nitrogen atoms of two NCS-, and an oxygen atom as well as a nitrogen atom of amine from the neutral Schiff base ligand of N-(3-dimethyl-aminopropyl)-salicylaldimine to give a distorted tetrahedral geometry.