Síntese e caracterização de complexos N,N'-dietilditiocarbamato de Bi(III), Sn(IV), Ga(III), In(III) e Zn(II) e de seus produtos de decomposição térmica.

• Ano de defesa: 2009
• Autor(a) principal: Fabiane Assis Carvalho
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: N'-dietilditiocarbamato; Sulfetos Metálicos; N; Carbamatos; Físico-química; Ciencia dos materiais; Análise térmica; Química
• Link de acesso: http://hdl.handle.net/1843/BIRC-85TSSL

The literature reports several interesting properties of dithiocarbamate ligands.Therefore, N,N-dietyldithiocarbamate anion has been employed in this work to produce Bi(III), Ga(III), In(III), Zn(II) and organotin complexes, in order to explore its ability as single source precursors of inorganic sulfides, in pyrolysis experiments. The work was divided into two parts. The first one comprised the synthesis of the ligand as sodium salt and the preparation of the complexes. All the compounds have beencharacterized by NMR, IR, and melting points. Also the thermal behavior of each complex has been studied by thermogravimetric analysis.In the second part of the work the complexes were thermally decomposed and the corresponding products were characterized by X-ray powder diffraction, X-ray photoelectron spectroscopy (except the organotin complex which was characterized by 119Sn MössbauerSpectroscopy) and electronic spectroscopy.