Dithiocarbamates derived from aspartic and glutamic acids as chelating agents |
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| Authors: | Macías Benigno Villa María V. Martín-Simón Myriam Rodríguez Licesio J. |
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| Affiliation: | (1) Departamento de Química Inorgánica, Facultad de Farmacia, Universidad de Salamanca, Avda. Campo Charro, s.n., 37007- Salamanca, Spain |
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| Abstract: | Dithiocarbamates (dtc's) derived from aspartic (asp) and glutamic (glu) acids have been synthesized and characterized. Their Ba salts are of the general formula Ba3(dtc–aa)2, where aa = amino acid. The dithiocarbamates react with NiII salts to yield square-planar complexes, [Ni(dtc–aa)2]. Complexes with PbII and CdII, with formula [M3(dtc–aa)2], are insoluble in water, and for CdII a second compound can be isolated in an acidic medium for the glutamic acid derivative, with formula [Cd(dtc–glu)]. Conductivity measurements indicate an appreciable affinity of the dithiocarbamates for these metal ions, with an almost quantitative scavenging ability. |
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