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http://nopr.niscpr.res.in/handle/123456789/40104| Title: | Kinetics and mechanism of oxidations of [N-(2-hydroxyethyl) ethylene-diamine-N,N',N'-triacetato] chromium (III) by N- bromosuccinimide |
| Authors: | Abdel-Khalek, Ahmed A. Sayyah, El-Said M. Khaled, Eman S. H. |
| Issue Date: | Jun-1998 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The kinetics of oxidation of [N-(2-hydroxyethyl)ethylenediamine- N,N' -Nvtnacetato] chromium (III) complex [CrIII (H2O)(TOH) by N-bromosuccinimide(NBS) in aqueous solution to yield chromium (IV) has been studied spectrophotometrically at 20-40°C range. The reaction is first order each in [NBS] and [CrIII], and the rate increases with increase in pH between 6.30 and 7.33. The thermodynamic activation parameters have been calculated. The experimental rate law is consistent with a mechanism in which the deprotonated [CrIII(OH)(TOH)- ] is considered to be the most reactive species compared to its conjugate acid. It is assumed that electron transfer takes place via an inner-sphere mechanism. |
| Page(s): | 489-492 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.37A(06) [June 1998] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 37A(6) 489-492.pdf | 423.05 kB | Adobe PDF | View/Open |
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