Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/14533Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Abdel-Khalek, Ahmed A | - |
| dc.contributor.author | Abdel-Hafeez, Mahmoud M | - |
| dc.date.accessioned | 2012-08-07T09:51:28Z | - |
| dc.date.available | 2012-08-07T09:51:28Z | - |
| dc.date.issued | 2012-08 | - |
| dc.identifier.issn | 0975-0975(Online); 0376-4710(Print) | - |
| dc.identifier.uri | http://hdl.handle.net/123456789/14533 | - |
| dc.description | 1073-1079 | en_US |
| dc.description.abstract | Oxidation of [CrIII(CD)(Ino)(H2O)4]2+ (where CD = carbidopa, Ino = inosine) with N-bromosuccinimide (NBS) was studied kinetically in aqueous media over varying ranges of concentrations of complex (1.0-5.0) × 10-4 mol dm-3 and NBS (0.5-5.0) × 10-2 mol dm-3, pH, ionic strength and temperature. The reaction is first order with respect to [CrIII] and [NBS]. The rate of reaction increases with increasing pH over the studied range (6.76-7.84). The anionic surfactant, sodium dodecyl sulphate is found to increase the rate of the oxidation in the range (0.0-1.0) × 10-3 mol dm-3. Thermodynamic activation parameters have also been calculated. The rate of oxidation obeys the equation d[CrVI]/dt = {k3 + k2 (1/[H+])}[NBS][[CrIII(CD)(Ino)(H2O)4]2+]. The experimental rate law is consistent with the proposed mechanism in which the protonated and deprotonated species are involved in the rate determing step. It is proposed that a two step one-electron transfer takes place via an inner sphere mechanism. | en_US |
| dc.language.iso | en_US | en_US |
| dc.publisher | NISCAIR-CSIR, India | en_US |
| dc.rights |  CC Attribution-Noncommercial-No Derivative Works 2.5 India | en_US |
| dc.source | IJC-A Vol.51A(08) [August 2012] | en_US |
| dc.subject | Kinetics | en_US |
| dc.subject | Reaction mechanisms | en_US |
| dc.subject | Carbidopa | en_US |
| dc.subject | Inosine | en_US |
| dc.subject | Chromium | en_US |
| dc.subject | Electron transfer | en_US |
| dc.title | Two step one-electron transfer reaction of chromium(III) complex containing carbidopa and inosine with N-bromosuccinimide | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | IJC-A Vol.51A(08) [August 2012] | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 51A(8) 1073-1079.pdf | 284.64 kB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.