Taqui Khan, M. M. ; Chatterjee, Debabrata ; Merchant, R. R. ; Bhatt, Anjani (1990) Kinetics and mechanism of epoxidation of cyclohexene and cyclooctene with potassium hydrogen persulphate catalyzed by aquoethylenediaminetetraacetatoruthenate(III) complex ion in water-dioxane medium Journal of Molecular Catalysis, 63 (2). pp. 147-153. 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)85138-8
Abstract
The kinetics of oxygenation of [(EDTA)RuIII(H2O)]− to [(EDTA)Ruv(O)]− by KHSO5 was studied spectrophotometrically by following the appearance of characteristic peak of [(EDTA)Ruv(O)]− (ε393max = 8000) at a fixed pH of 6.0 and ionic strength 0.2 M (NaCiO4). The time course of subsequent oxygen transfer from [(EDTA)Ruv(O)]− to cyclohexene and cyclooctene was investigated by following the decrease in the characteristic oxo peak at 393 nm as a function of substrate concentration and temperature (30-50°C) at a constant pH of 6 and ionic strength 0.2 M (NaC1O4). Activation parameters for both the oxygenation of [(EDTA)RuIII(H2O)]− to [(EDTA)Ruv(O)]− and oxygen atom transfer from [(EDTA)Ruv(O)]− to cyclohexene and cyclooctene were determined and probable mechanisms for both reactions proposed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 58515 |
| Deposited On: | 31 Aug 2011 12:19 |
| Last Modified: | 31 Aug 2011 12:19 |
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