SYNTHESIS AND X-RAY CRYSTAL-STRUCTURE OF A MACROCYCLIC BINUCLEAR CADMIUM(II) COMPLEX WITH SIDE-CHAIN

The binuclear cadmium (II) macrocyclic complex was synthesized by [2 2] Schiff base condensation of tris(3-aminopropyl)amine (trpn) with s odium 2,6-diformyl-4-methylphenolate (sdmp) in the presence of Cd2+. T he crystal structure of the complex [Cd2L](ClO4)(2) . H2O . 0.5CH(3)OH has been determined by X-ray diffraction. The crystal is orthorhombic , space group Aba2, a = 16.163(6), b = 17.714(6), c = 16.027(6) Angstr om, Z = 4, V = 4589(5) Angstrom(3), F(000) = 2220, R = 0.048, R-w = 0. 060. Each cadmium locates at the center of a distorted octahedron comp osed of three oxygens in the phenoxy groups and three nitrogens in trp n. The coordination of the phenoxy oxygens and terminal amino groups e nchanced the stability of the complex.