| DOI | Trouver le DOI : https://doi.org/10.1139/v71-475 |
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| Auteur | Rechercher : Gillis, Hugh A.1 |
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| Affiliation | - Conseil national de recherches Canada
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| Format | Texte, Article |
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| Résumé | The ratios of rate constants for disproportionation to combination have been measured for ethyl radicals and for i-propyl radicals in liquid methane between −181 and −94 °C. The radicals were generated by γ-radiolysis of dilute methane solutions of ethylene-d4 or propylene-d6. The activation energy for combination was found to exceed that for disproportionation by 290 ± 30 cal mol−1 for ethyl radicals and by 255 ± 25 cal mol−1 for i-propyl radicals. In both cases the disproportionation—combination ratio in the liquid, extrapolated to room temperature, is greater than that in the gas phase by a factor of about 2.5. These results are interpreted as indicating that disproportionation and combination reactions proceed by way of different transition states. |
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| Date de publication | 1971 |
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| Dans | |
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| Langue | anglais |
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| Numéro du CNRC | 3700 |
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| Numéro NPARC | 8896874 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | cfd4adee-4809-4067-b001-00c11dafadfe |
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| Enregistrement créé | 2009-04-22 |
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| Enregistrement modifié | 2020-03-13 |
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