Taqui Khan, M. M. ; Chatterjee, D. ; Samad, S. A. ; Merchant, R. R. (1990) Kinetics of the oxidation of triphenylphosphine with sodium hypochlorite catalysed by aquo-ethylenediaminetetraacetato ruthenate(III) in water-dioxan medium Journal of Molecular Catalysis, 61 (1). pp. 55-60. ISSN 0304-5102
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0304-5102(90)85193-L
Abstract
The kinetics of oxygenation of aquo-ethylenediaminetetraacetato ruthenate(III) to oxo-ruthenium(V) by NaOCl was studied spectrophotometrically by monitoring the appearance of the characteristic peak of (EDTA)RuV(O)− λmax=394nm, εmax=8000±20) at pH5.6 and ionic strength 0.2 M (NaClO4). The subsequent oxygen atom transfer from (EDTA)Ruv(O)t̅ to triphenylphosphine was investigated by following the disappearance of (EDTA)Ruv(O)t̅ as a function of substrate concentration and temperature (30-50°C). Activation parameters for both oxygenation of (EDTA)RuIII(H2O)− to (EDTA)Ruv(O)− and oxygen atom transfer from (EDTA)Ruv(O)− to PPh3 were computed and the experimental results are discussed in reference to the data for the oxygen atom transfer reaction in the oxidation of triphenylphosphine by molecular oxygen catalysed by (EDTA)RuIII(H2O)−.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 58530 |
| Deposited On: | 31 Aug 2011 12:19 |
| Last Modified: | 31 Aug 2011 12:19 |
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