Spectral studies of some transition-metal–thioacetamide complexes

Abstract

Electronic and vibrational spectra are reported for the compounds ML₂X₂(L = thioacetamide; M = Fe, Co, Zn, or Cd, X = Cl or Br; M = Co, Zn, or Cd, X = l; and M = Co or Ni, X = NCS) and ML₄X₂(M = Ni, X = Cl, Br, NO₃, ClO₄, or ½SO₄; M = Pd or Pt, X = Cl; and M = Cd, X = NO₃). The halogeno-complexes of Fe, Co, Zn, and probably also Cd, appear to have tetrahedral structures, the nickel chloro-complex is distorted octahedral, and the other nickel complexes are planar. Metal–halogen and metal–sulphur stretching frequencies are reported.