Synthesis and structure of anti-configuration complex [Cu(tssb)(2)]center dot 2[(H3O)Cl]center dot 4H(2)O

Abstract

The title complex [Cu(tssb)(2)](.)2[(H3O)Cl](.)4H(2)O (C18H34Cl2CuN2O14S2) (tssb = taurine salicylaldehyde Schiff base) has been synthesized by the reaction of taurine salicylaldehyde Schiff base (tssb) and copper acetate in water-ethanol. Its single-crystal structure was determined by X-ray diffraction method. The crystal structure belongs to triclinic, space group P (1) over bar with a = 0.7407(1), b = 1.3329(3), c = 1.5736(3) nm, a = 103.800(4), beta = 95.030(4), gamma = 104.416(4)degrees, M-r = 701.06, V = 1.4433(5) nm(3), Z = 2, D-c = 1.613 g/cm(3), mu = 1.153 mm(-1) and F(000) = 726. The compound is an infinitely expanding three-dimensional network connected with hydrogen bonds. The Cu(II) atom is coordinated by two nitrogen and two oxygen atoms to form a distorted planar coordination compound which adopts anti-configuration because two sulfonic acid groups are positioned diagonally on a plane.