SYNTHESIS AND CRYSTAL-STRUCTURE OF THE CADMIUM COMPLEX OF 2-BROMOBENZALDEHYDE THIOSEMICARBAZONE

The new cadmium iodide complex CdL2I2 (where L is a Schiff base ligand , 2-bromobenzaldehyde thiosemicarbazone) has been synthesized and char acterized by spectroscopic techniques and single-crystal Xray analysis . The coordination geometry about the cadmium atom is distorted trigon al bipyramidal with two iodide atoms and one sulfur atom, S(2), from o ne of the two ligands in the equatorial plane; the iodide atom I(la) f rom an adjacent moiety and the other sulfur atom S(1) occupy the axial positions. The iodide I(1a) and I(1) serve as bridges to form a centr osymmetric dimeric structure. (C) 1997 Elsevier Science Ltd.