Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous Medium
The kinetics of the electron transfer reaction of NADH with 12-tungstocobaltate(III) has been studied over the range 5.07 ≤ 104 [NADH] ≤ 15.22 mol dm-3, 7.0 ≤ pH ≤ 8.0 and 20 ≤ t ≤ 35 oC in aqueous medium. The electron transfer reaction showed first-order dependence each in [NADH]T and [12-tungstoco...
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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/10.1155/2011/341865 |
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| author | Prabla Kumari Alaka Das Dillip Kumar Baral A. K. Pattanaik P. Mohanty |
| author_facet | Prabla Kumari Alaka Das Dillip Kumar Baral A. K. Pattanaik P. Mohanty |
| author_sort | Prabla Kumari |
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| description | The kinetics of the electron transfer reaction of NADH with 12-tungstocobaltate(III) has been studied over the range 5.07 ≤ 104 [NADH] ≤ 15.22 mol dm-3, 7.0 ≤ pH ≤ 8.0 and 20 ≤ t ≤ 35 oC in aqueous medium. The electron transfer reaction showed first-order dependence each in [NADH]T and [12-tungstocobaltate(III)]T. The products of the reaction were found to be NAD+ and 12-tungstocobaltate(II). The activation parameters ΔH# (kJ mol-1) and ΔS# (JK-1mol-1) of the electron transfer reactions were found to be 64.4±1.8 and -48.86±6.0. Negative value of ΔS# is an indicative of an ordered transition state for the electron transfer reaction. |
| format | Article |
| id | doaj-art-e8d9cbd149724a3d85322ed359c01e7c |
| 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-e8d9cbd149724a3d85322ed359c01e7c2025-02-03T07:23:32ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-01831152115710.1155/2011/341865Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous MediumPrabla Kumari0Alaka Das1Dillip Kumar Baral2A. K. Pattanaik3P. Mohanty4Department of Chemistry, Utkal University, Bhubaneswar, 751004, Orissa, IndiaDepartment of Chemistry, Utkal University, Bhubaneswar, 751004, Orissa, IndiaDepartment of Chemistry, Utkal University, Bhubaneswar, 751004, Orissa, IndiaDepartment of Chemistry, Khalikot Autonomous College, Berhampur, IndiaDepartment of Chemistry, Utkal University, Bhubaneswar, 751004, Orissa, IndiaThe kinetics of the electron transfer reaction of NADH with 12-tungstocobaltate(III) has been studied over the range 5.07 ≤ 104 [NADH] ≤ 15.22 mol dm-3, 7.0 ≤ pH ≤ 8.0 and 20 ≤ t ≤ 35 oC in aqueous medium. The electron transfer reaction showed first-order dependence each in [NADH]T and [12-tungstocobaltate(III)]T. The products of the reaction were found to be NAD+ and 12-tungstocobaltate(II). The activation parameters ΔH# (kJ mol-1) and ΔS# (JK-1mol-1) of the electron transfer reactions were found to be 64.4±1.8 and -48.86±6.0. Negative value of ΔS# is an indicative of an ordered transition state for the electron transfer reaction.http://dx.doi.org/10.1155/2011/341865 |
| spellingShingle | Prabla Kumari Alaka Das Dillip Kumar Baral A. K. Pattanaik P. Mohanty Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous Medium E-Journal of Chemistry |
| title | Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous Medium |
| title_full | Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous Medium |
| title_fullStr | Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous Medium |
| title_full_unstemmed | Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous Medium |
| title_short | Nonenzymatic NADH-Dependent Reduction of Keggin-Type 12-Tungstocobaltate(III) in Aqueous Medium |
| title_sort | nonenzymatic nadh dependent reduction of keggin type 12 tungstocobaltate iii in aqueous medium |
| url | http://dx.doi.org/10.1155/2011/341865 |
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