Ruthenium Nitrosyls
Mostrando 1-2 de 2 artigos, teses e dissertações.
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1. Ruthenium(II) nitrosyls as radical scavenger / Nitrosilo complexos de rutênio(II) como captores de radicais de interesse biológico
The complexes trans-[Ru(NO)(NH3)4(L)](X)3 (1), [Ru(NO)(Hedta)] (2) and their synthetic precursors trans-[Ru(H2O)(NH3)4(L)](X)2 (3), trans-[Ru(SO4)(NH3)4(L)](X) (4) , where L = isn, nic, imN, 4-pic, py, P(OEt) e X = PF6 - and BF4 -, were tested as scavengers for the radicals DPPHo, OHo e O2 -o in aqueous media. The redox potential for the metal center in the
Publicado em: 2009
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2. Ruthenium nitrosyl compounds. Chemical equilibrium, involvement in vegetal systems and cytotoxicity in cancer / Nitrosilos complexos de rutênio. Equilíbrio químico, envolvimento em sistemas vegetais e citotoxicidade em modelos de câncer
The product of the reaction of trans-[Ru(NH3)4P(OEt) 3H2O]2+ with nitrite ions depends on the hydrogenionic concentration of the medium. In solutions with pH > 10, the final compound is the trans-[Ru(NH3)4P(OEt) 3NO2]+ (1,1 x 103 M-1.s-1), wich is quantitatively converted into the trans-[Ru(NH3)4P(OEt) 3NO]3+ in acid solutions (CH+ > 10-5 mol.L-1; kobs
Publicado em: 2008