Synthesis and crystal structure of nickel(II) complex of N,N′-bis(5-methyl-3-carboxylsalicylidene)-ethylenediamine

The title complex Ni(EMS) [H2EMS = N,N′-bis(5-methyl-3-carboxylsalicylidene)-ethylene diamine] was synthesized.Its crystal structure was confirmed by infrared spectrometry,ultraviolet-visible light spectrometry,and single crystal X-ray diffraction.Results indicate that as-prepared title complex belongs to monoclinic system of space group C2/c,with unit cell parameters of a = 1.933 85(17) nm,b = 0.974 24(9) nm,c = 0.951 86(9) nm,β = 91.084(2)°,V = 1.793 02(28) nm3,Z = 4,Mr = 441.07,Dc = 1.633 83 g/cm3,F(000) = 912,μ = 1.126 mm-1,R1 = 0.035 2,wR2 = 0.081 5,and S = 1.027.The Ni(Ⅱ) ion in the complex is coordinated with two oxygen atoms and two nitrogen atoms in a square planar manner.