Coordinating ability of methylpiperidine dithiocarbamates towards platinum group metals

Abstract

New rhodium(III), iridium(III), palladium(II) and platinum(II) dithiocarbamate complexes of the types M(Rdtc)₃ and M(Rdtc)₂ (Rdtc = 2-, 3- and 4-methylpiperidine dithiocarbamate) have been prepared and characterized by chemical analyses, conductance measurements, electronic and IR spectral studies, magnetic measurements and thermal analyses (TG and DTG techniques). From the electronic absorption spectra the values of the ligand field parameters were determined; the nephelauxetic parameters are indicative of a strong covalency in the metal-ligand bond. All the complexes here reported are diamagnetic and nonconducting both in the solid state and in DMF solution.