Metal Complexes of S-Acetyl(β-N-acetyl)dithiocarbazate

Abstract

The new ligand, S-acetyl(&beta;-N-acetyl)dithiocarbazate (CH₃CONHNHCSSCOCH₃) reacts with metal ions only in alkaline medium as a bidentate uni-negative (N,S^-) donor ligand giving complexes of type [M(NS^-)₂[M = Ni(II) and Zn(II)], [M'(NS^-)₂X₂] [M'=Zr(IV) and Th(IV); X = NO<img src='/image/spc_char/3_bar.gif' border=0> and NCS^-), [Cr(NS^-)₂X^.H₂O) and [UO(NS^-)₂X₂]. Analytical, conductivity and magnetic measurements, and spectral data of the complexes are consistent with four-coordination of Ni(II) and Zn(II) ions while zirconium, thorium and chromium analogues are six-coordinate. The uranium complexes are seven-coordinate.