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Reaction Kinetics and Catalysis Letters

, Volume 46, Issue 1, pp 145–151 | Cite as

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

  • M. M. Taqui Khan
  • Debabrate Chatterjee
  • A. B. Boricha
  • R. R. Merchant
  • M. A. Moiz
  • Amjad Hussain
Article

Abstract

The kinetics of ligand substitution reactions of [Ru(H2dtpa) (H2O)] (2) (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.

Keywords

Physical Chemistry Aqueous Solution Catalysis Cysteine Ionic Strength 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract

Кинетику реакций лигандного замещения [Ru(H2dtpa) (H2O)] (где H2dtpa=дипротонированная диэтилтриаминпентауксусная кислота) исследовали в зависимости от концентрации лиганда, pH (2,5–8,0) и температуры (30–45°C) при ионной силе 0,2 M. На основе потенциометрических измерений рассчитаны на ЭВМ константы равновесия образования комплексов смешанных лигандов [RuIII(dtpa) (L)] (где L=2-меркаптопиримидин, цистеин) и распределение различных частиц в растворе при pH=2,5–8,0.

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Copyright information

© Akadémiai Kiadó 1992

Authors and Affiliations

  • M. M. Taqui Khan
    • 1
  • Debabrate Chatterjee
    • 1
  • A. B. Boricha
    • 1
  • R. R. Merchant
    • 1
  • M. A. Moiz
    • 1
  • Amjad Hussain
    • 1
  1. 1.Central Salt and Marine Chemicals Research InstituteBhavnagarIndia

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