Data/hora: 11/06/2024 01:32:52

Provedor de dados: | 42
País: | Brazil
Título: | Thermal properties of metal-metal bonded Pd(I) complexes supported onto porous Vycor glass
Autores: | Gimenez,Iara F.; Alves,Oswaldo L.
Data: | 2008-06-01
Ano: | 2008
Palavras-chave: | Palladium(I) complex; Porous Vycor glass; Bis[diphenylphosphino(methane)]; Thermogravimetric analysis.
Resumo: | Thermal behavior of the complexes Pd2(dppm)2Cl2, Pd2(dppm)2(SnCl3)Cl and Pd2(dppm)2(SnCl3)2 (dppm = bis[diphenylphosphino(methane)], ((C6H5)2PCH2P(C6H5)2) in the solid state and immobilized onto porous Vycor glass was studied. Similar decomposition mechanisms were observed for the solid and immobilized complexes, with a small thermal stabilization upon immobilization. The decomposition products were characterized by X-ray diffractometry, Raman and diffuse reflectance infrared spectroscopy, which indicated the presence of a mixture of metallic palladium and oxidized species such as PdO,condensed phosphates, SnO2 and SnP2O7. According to X-ray diffractometry, the decomposition products of the immobilized complexes presented higher amounts of PdO than the solid-state residues, probably as an effect of interactions with silanol groups present in the glass surface.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200004
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652008000200004
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.80 n.2 2008
Fonte: | info:eu-repo/semantics/openAccess