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http://nopr.niscpr.res.in/handle/123456789/46901| Title: | Kinetics of oxidation of  -ascorbic acid by iron(III) in presence of 2,2'-bipyridyl-Application of Marcus theory |
| Authors: | Rao, P V Subba Saradamba, (Miss) G V Ramakrishna, K Rao, Mohana Subbaiah, K V |
| Issue Date: | Dec-1989 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Kinetics of oxidation of ascorbic acid by iron(III) in the presence of 2,2'-bipyridyl has been investigated under anaerobic conditions. The reaction is first order each in [iron(III)] and [ascorbic acid]. The plots of 1/k’ versus 1/[Bipy] and 1/k' versus [H+]2 are linear with positive intercepts. The kinetic results provide evidence for the formation of an intermediate complex, Fe(bipy)  which reacts with the unionised form of ascorbic acid in the rate-limiting stage. The stability constant of the complex has been evaluated from the kinetic data. The kinetic data are compatible with the Marcus' theory for outer sphere electron-transfer. |
| Page(s): | 1060-1063 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.28A(12) [December 1989] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 28A(12) 1060-1063.pdf | 2.08 MB | Adobe PDF | View/Open |
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