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| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Fathalla, Magda F | - |
| dc.contributor.author | Ismail, Amel M | - |
| dc.date.accessioned | 2013-05-09T10:36:48Z | - |
| dc.date.available | 2013-05-09T10:36:48Z | - |
| dc.date.issued | 2006-04 | - |
| dc.identifier.issn | 0975-0975(Online); 0376-4710(Print) | - |
| dc.identifier.uri | http://hdl.handle.net/123456789/17975 | - |
| dc.description | 901-904 | en_US |
| dc.description.abstract | Kinetics of alkaline hydrolysis of indole-2,3 -dione (isatin) and indole-2,3-dione (N- melhyl isatin) have been carried out at different percentages of DMSO-H2O mixtures and at different temperatures in the range 30-45°C. The reaction proceeds according to pesudo first-order kinetics. The presence of an electron releasing substituent melhyl group attached to nitrogen atom accelerates the reaction rate. Thermodynamic activation parameters ΔH#, ΔS# and ΔG# have been determined. The negative values of entropy of activation and the non- linear relation between log rate constant and reciprocal of dielectric constant suggest selective solvation by the higher polar water solvent molecules. | en_US |
| dc.language.iso | en_US | en_US |
| dc.publisher | CSIR | en_US |
| dc.rights |  CC Attribution-Noncommercial-No Derivative Works 2.5 India | en_US |
| dc.source | IJC-A Vol.45A(04) [April 2006] | en_US |
| dc.title | Kinetics and reactivity of indole-2,3 –dione ring towards alkali in dimethyl sulphoxide-water mixtures | en_US |
| dc.type | Article | en_US |
| Appears in Collections: | IJC-A Vol.45A(04) [April 2006] | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 45A(4) 901-904.pdf | 775.68 kB | Adobe PDF | View/Open |
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