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Triethyl phosphite as a ligand on Ru(III). Synthesis, characterization and properties of trans-[Ru(NH3)4P(OEt)3(H2O)](CF3SO3)3

1991; Elsevier BV; Volume: 182; Issue: 1 Linguagem: Inglês

10.1016/s0020-1693(00)85191-9

1873-3255

Neide M.S. de Rezende, Silvia de Castro Martins, Luiz Alves Marinho, José Aroldo Viana dos Santos, Marcel Tabak, Janice Rodrigues Perussi, Douglas Wagner Franco,

Organometallic Complex Synthesis and Catalysis

The complex ion trans-[Ru(NH3)4P(OEt)3(H2O)]3+ was obtained through electrochemical and chemical oxidation of the corresponding Ru(II) complex ion. The compound trans-[Ru(NH3)4P(OEt)3(H2O)]-(CF3SO3)3 was isolated and characterized by means of micro-analysis, cyclic voltammetry, UV-Vis and electron paramagnetic resonance spectroscopy. The ion trans[Ru(NH3)4P(OEt)3(H2O)]3+ decomposes in aqueous solution according to 4Ru(III)⇒3Ru(II)+ Ru(VI). The decay rate of the Ru(III) complex ion concentration is inversely proportional to the hydrogen ion solution concentration (CH+=1.0×10−1 M, kobs=4×10−5 s−1; CH+=10−12 M, kobs=3.3 s−1; 25 °C, μ=0.3 NaCF3COO).