NMR study of ligand exchange in some metal dithiocarbamates

Abstract

The 1H-NMR spectroscopy was employed to study solutions of the dithiocarbamates of Cr(III), Fe(III), Co(III), Ni(II), Cu(II) and Zn(II) in carbon disulphide. It was confirmed that, in spite of the marked thermal stability of these complexes, ligand exchange occurs in solution, where the rate of exchange decreases in the order: Zn(II) Ni(II), Fe(III) Cu(II) Co(III), Cr(iii). The exchange practically does not occur in Co(III) and Cr(III) complexes.