Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic Medium
The kinetics of oxidation of glutamic acid (Glu) with N-bromophthalimide (NBP) was studied in perchloric acid medium at 30 °C by potentiometric method. The reaction is first order each in NBP and glutamic acid and is negative fractional order in [H+]. Addition of KBr or the reaction product, phthali...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/572603 |
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| author | N. M. I. Alhaji S. Sofiya Lawrence Mary |
| author_facet | N. M. I. Alhaji S. Sofiya Lawrence Mary |
| author_sort | N. M. I. Alhaji |
| collection | DOAJ |
| description | The kinetics of oxidation of glutamic acid (Glu) with N-bromophthalimide (NBP) was studied in perchloric acid medium at 30 °C by potentiometric method. The reaction is first order each in NBP and glutamic acid and is negative fractional order in [H+]. Addition of KBr or the reaction product, phthalimide had no effect on the rate. Similarly variation of ionic strength of the medium did not affect the rate of the reaction. Also the rate increased with decrease in dielectric constant of the reaction medium. The thermodynamic parameters were computed from Arrhenius and Eyring plots. A suitable mechanism consistent with the kinetic results has been proposed. |
| format | Article |
| id | doaj-art-3573f963716444f7869c1b6d4d6db4c9 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-3573f963716444f7869c1b6d4d6db4c92025-02-03T01:24:33ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-01841472147710.1155/2011/572603Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic MediumN. M. I. Alhaji0S. Sofiya Lawrence Mary1P.G. and Research Department of Chemistry, Khadir Mohideen College, Adirampattinam - 614 701, IndiaP.G. and Research Department of Chemistry, Khadir Mohideen College, Adirampattinam - 614 701, IndiaThe kinetics of oxidation of glutamic acid (Glu) with N-bromophthalimide (NBP) was studied in perchloric acid medium at 30 °C by potentiometric method. The reaction is first order each in NBP and glutamic acid and is negative fractional order in [H+]. Addition of KBr or the reaction product, phthalimide had no effect on the rate. Similarly variation of ionic strength of the medium did not affect the rate of the reaction. Also the rate increased with decrease in dielectric constant of the reaction medium. The thermodynamic parameters were computed from Arrhenius and Eyring plots. A suitable mechanism consistent with the kinetic results has been proposed.http://dx.doi.org/10.1155/2011/572603 |
| spellingShingle | N. M. I. Alhaji S. Sofiya Lawrence Mary Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic Medium E-Journal of Chemistry |
| title | Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic Medium |
| title_full | Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic Medium |
| title_fullStr | Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic Medium |
| title_full_unstemmed | Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic Medium |
| title_short | Kinetics and Mechanism of Oxidation of Glutamic Acid by N-Bromophthalimide in Aqueous Acidic Medium |
| title_sort | kinetics and mechanism of oxidation of glutamic acid by n bromophthalimide in aqueous acidic medium |
| url | http://dx.doi.org/10.1155/2011/572603 |
| work_keys_str_mv | AT nmialhaji kineticsandmechanismofoxidationofglutamicacidbynbromophthalimideinaqueousacidicmedium AT ssofiyalawrencemary kineticsandmechanismofoxidationofglutamicacidbynbromophthalimideinaqueousacidicmedium |