Kinetics and mechanism of the ligand substitution reaction of aquodiethylenetriaminepentaacetatoruthenate (III) in aqueous solution

Taqui Khan, M. M. ; Chatterjee, Debabrate ; Boricha, A. B. ; Merchant, R. R. ; Moiz, M. A. ; Hussain, Amjad (1992) Kinetics and mechanism of the ligand substitution reaction of aquodiethylenetriaminepentaacetatoruthenate (III) in aqueous solution Reaction Kinetics and Catalysis Letters, 46 (1). pp. 145-151. ISSN 0133-1736

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Official URL: http://www.springerlink.com/content/p8l1r87007677h...

Related URL: http://dx.doi.org/10.1007/BF02096690

Abstract

The kinetics of ligand substitution reactions of [Ru(H2dtpa) (H2O)] (2̲) (H2dtpa=diprotonated diethylenetriaminepentaacetic acid) were studied as a function of ligand (L') concentration, pH (2.5-8.0) and temperature (30-45°C) at 0.2 M ionic strength. The equilibrium constants for the formation of mixed ligand complex [RuIII(dtpa) (L)] (L=2-mercaptopyrimidine, cysteine) and the distribution of various species in solution in the pH range of 2.5-8.0 were computed from potentiometric results.

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