Aravindakumar, C. T. ; Jacob, T. A. ; Mohan, H. ; Mahal, H. S. ; Mukherjee, T. ; Mittal, J. P. (1998) Anomalous high reactivity of formyl and acetone ketyl radicals with uracil and its derivatives Chemical Physics Letters, 287 (5-6). pp. 645-652. ISSN 0009-2614
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00092...
Related URL: http://dx.doi.org/10.1016/S0009-2614(98)00199-7
Abstract
CO2•- and (CH3)2·COH radicals apparently react with uracil and its derivatives, containing two carbonyl groups, with high rate constants (k=1010 dm3 mol-1 s-1). Various mechanistic aspects of such reactions have been probed. The effect of pH and buffer concentration on the initial formation of absorbance points to some keto-enol tautomerism-type fast-reaction between OH- and the substrate, followed by a slower relaxation to the original equilibrium. The radical anions of these compounds react with methyl viologen mainly via an electron transfer reaction with a high rate constant value (4-9)× 109 dm3 mol-1 s-1.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 25718 |
| Deposited On: | 04 Dec 2010 11:50 |
| Last Modified: | 07 Jun 2011 06:57 |
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