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

摘要

The binuclear cadmium (II) macrocyclic complex was synthesized by [2 + 2] Schiff base condensation of tris(3-aminopropyl)amine (trpn) with sodium 2,6-diformyl-4-methylphenolate (sdmp) in the presence of Cd2+. The 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) Angstrom, 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 composed of three oxygens in the phenoxy groups and three nitrogens in trpn. The coordination of the phenoxy oxygens and terminal amino groups enchanced the stability of the complex. [References: 14]