Coordination Compounds of Dimethyl 1, 1′-Diacetylferrocenebis(hydrazonatocarbodithioate) with Transition Metals

Abstract

A new ligand, dimethyl 1,1′-diacetylferrocenebis (hydrazonatocarbodi-thioate) (H₂L), was prepared by the condensation of 1,1′-diacetylferrocene with S-methyldithiocarbazate. Its transition metal complexes, ML·(1–3)H₂O [M = Cu(II), Co(II), Ni(II), Zn(II), Cd(II) and UO₂(VI)], were obtained by the reaction of hydrated metal acetate with H₂L. The data of elemental analyses, IR, ¹H NMR, electronic spectra, molar conductivities, magnetic moments and thermal analyses show that the ligand coordinates to the metal ion in the thioenol form. These complexes are non-electrolytes in DMF and are more thermally stable than their ligand due to the formation of chelate rings.