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

Ronconi, Luca ; Maccato, Chiara ; Barreca, Davide ; Saini, Roberta ; Zancato, Mirella ; Fregona, Dolores

Polyhedron, 2005-03, Vol.24 (4), p.521-531 [Periódico revisado por pares]

Elsevier Ltd

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  • Título:
    Gold(III) dithiocarbamate derivatives of N-methylglycine: An experimental and theoretical investigation
  • Autor: Ronconi, Luca ; Maccato, Chiara ; Barreca, Davide ; Saini, Roberta ; Zancato, Mirella ; Fregona, Dolores
  • Assuntos: Chelates ; Density functional calculations ; Gold ; Mass spectrometry ; S ligands ; X-ray photoelectron spectroscopy
  • É parte de: Polyhedron, 2005-03, Vol.24 (4), p.521-531
  • Descrição: The synthesis and characterization of the gold(III) complexes [(HSDT)AuX 2] and [(HSDT) 2Au]X (X = Cl, Br; HSDT = sarcosinedithiocarbamate) 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 complex [(HSDT) 3Au] has also been synthesized and a structural hypothesis is discussed on the basis of experimental results. The synthesis and characterization of the gold(III) complexes [(HSDT)AuX 2] and [(HSDT) 2Au]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, 1H and 13C 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) 3Au] 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.
  • Editor: Elsevier Ltd
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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