Bs. Latha et al., Kinetics and mechanism of ruthenium (III)-catalysed oxidation of pyrimidine bases by peroxydiphosphate in aqueous perchloric acid medium, I J CHEM A, 38(11), 1999, pp. 1184-1187
Citations number
11
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
Kinetics and mechanism of Ru(III) - catalysed oxidation of pyrimidine bases
by peroxydiphosphate (PDP) have been studied in aqueous perchloric acid me
dium. The reaction is first order each in [PDP] and [Ru(III)] and the rate
is independent of [substrate]. The reaction is insensitive towards changes
in acid concentration while the effect of ionic strength is negligible on t
he rate of oxidation. The reactions have been studied at different temperat
ures and activation parameters evaluated. A mechanism, involving the two-el
ectron oxidation of Ru(III) by PDP in a slow step, is proposed.