Synthesis and Crystal Structure of the Azo Copper(Ⅱ)-complex

The single crystals of the azo copper(Ⅱ)-complex have been obtained from the solution of the compound dissolved in the ethanol by slow evaporation at room temperature. The structure was successfully determined by single-crystal X-ray diffraction. The crystal is of triclinic system, space group P(1) with a = 7.8843(12), b = 11.5998(17), c = 13.955(2) A, α = 112.214(2),β =95.105(2), γ = 97.616(2)°, V= 1157.6(3) (A)3, Mr= 586.97, Z = 2, F(000) = 600, Dc= 1.684 g/cm3,μ(MoKα) = 1.120 mm-1, the final R = 0.0419 and wR = 0.1259 for 3475 observed reflections with I > 2σ(I). The coordination around copper(Ⅱ) atom is a slightly distorted square-pyramidal geometry involving [Cu(C16H11N4O8S)(OH)H2O]- cation, one Na+ anion and one C2H5OH solvate molecule.framework. 419 and