The synthesis and characterization of the gold(III) complexes [(HSDT)AuX2] and [(HSDT)(2)Au]X (X = Cl, Br; HSDT = sarcosinedithiocarbamate (N-methylglycinedithiocarbamate)) are reported. In the discussed compounds coordination takes place through the sulfur atoms in a square-planar geometry around the gold(III) metal center. The characterization of the complexes has been carried out by means of elemental analysis, conductance measurements, FT-IR, H-1 and C-13 NMR spectroscopy, and thermogravimetric analysis. In addition, the molecular structure of the 1:1 metal-to-ligand complexes has been further investigated by means of density functional calculations, confirming the conclusions reached upon application of the other chemical characterization techniques. The complex [(HSDT)(3)Au] has been also synthesized and characterized by mass spectrometry, FT-IR, NMR and X-ray photoelectron spectroscopy, even if a definitive determination of its structure has not been undoubtedly accomplished.

Gold(III) dithiocarbamate derivatives of N- methylglycine: an experimental and theoretical investigation

RONCONI, LUCA;MACCATO, CHIARA;BARRECA, DAVIDE;SAINI, ROBERTA;ZANCATO, MIRELLA;FREGONA, DOLORES
2005

Abstract

The synthesis and characterization of the gold(III) complexes [(HSDT)AuX2] and [(HSDT)(2)Au]X (X = Cl, Br; HSDT = sarcosinedithiocarbamate (N-methylglycinedithiocarbamate)) are reported. In the discussed compounds coordination takes place through the sulfur atoms in a square-planar geometry around the gold(III) metal center. The characterization of the complexes has been carried out by means of elemental analysis, conductance measurements, FT-IR, H-1 and C-13 NMR spectroscopy, and thermogravimetric analysis. In addition, the molecular structure of the 1:1 metal-to-ligand complexes has been further investigated by means of density functional calculations, confirming the conclusions reached upon application of the other chemical characterization techniques. The complex [(HSDT)(3)Au] has been also synthesized and characterized by mass spectrometry, FT-IR, NMR and X-ray photoelectron spectroscopy, even if a definitive determination of its structure has not been undoubtedly accomplished.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/2448330
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