SPECTROSCOPIC STUDY OF CADMIUM(II) COMPLEXES WITH HETEROCYCLIC DITHIOCARBAMATE LIGANDS

Cadmium(II) dithiocarbamates [Cd(dtC)2] (dtc=4-carboxamidopiperidine-1-carbodithioate, morpholine-1-carbodithioate or 4-(2-hydroxyethyl)piperazine-1-carbodithioate) and [Cd(dtc)2]-H2O (dtc=4-hydroxypiperidine-1-carbodithioate} have been prepared and characterized by thermal analysis and IR and NMR (C-13, Cd-113) spectrometry. Two of these ligands have previously been shown capable of removing cadmium from its aged in vivo storage sites. The use of solid state C-13 NMR measurements to establish the coordination mode of the ditbiocarbamate ligands is also examined and the difficulties which arise are discussed.