Artigo
A NOVEL SYNTHETIC ROUTE FOR SUPPORTING RUTHENIUM COMPLEXES ON FUNCTIONALIZED SILICA-GEL
Fecha
1993-11-01Registro en:
Langmuir. Washington: Amer Chemical Soc, v. 9, n. 11, p. 2982-2985, 1993.
0743-7463
10.1021/la00035a041
WOS:A1993MH66400041
Autor
Universidade de São Paulo (USP)
Universidade Federal do Piauí (UFPI)
Universidade Estadual Paulista (Unesp)
Universidade Estadual de Campinas (UNICAMP)
Resumen
The immobilization of the ruthenium moiety Ru(NH3)4SO3 by reaction of trans-[Ru(NH3)4SO2(H2O)]2+ with silica gel functionalized with 3-(1-imidazolyl)propyl groups is reported. A 60% surface coverage was obtained in the proportion of the resulting material [=Si(CH2)3imN-Ru(NH3)4SO3]. The anchored Ru(II) complex was characterized and its reactivity investigated. Derivatives of CO, pyrazine, and isonicotinamide have been prepared and characterized by electronic and vibrational spectroscopies, as well as by chemical means. The [=Si(CH2)3imN-Ru(NH3)4SO4]Cl, obtained through oxidation of the corresponding ruthenium(II) sulfite species, has been characterized and the aquo and the oxalate derivative have been synthesized.