Formation of nitrous oxide in the reaction of O(1D2) atoms with nitrogen
| Autor: | R. J. Cvetanović, O. Kajimoto |
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| Rok vydání: | 1976 |
| Předmět: | |
| Zdroj: | The Journal of Chemical Physics. 64:1005-1015 |
| ISSN: | 1089-7690 0021-9606 |
| Popis: | The quantum yields of N2O (φN2O) formed in the reaction of O(1D2) atoms with N2 have been determined in the gas phase at 23°C and at pressures between 25 and 115 atm and, for comparison, in liquid phase at cryogenic temperatures. Extrapolation of the gas phase results indicates for φN2O at 1 atm the very low value of 3×10−7, which precludes direct observation of N2O formation at 1 atm in laboratory experiments by the currently employed analytical techniques. With increasing pressure φN2O increases but does not show the simple dependence on [N2] predicted by the generally used mechanism based on the ’’strong collision’’ assumption. The results show instead a linear dependence of 1/φ1/2N2O on 1/[N2], which can be rationalized in terms of two alternative mechanisms. Although both mechanisms invoke a two stage deactivation of the energy rich initial adduct (N2O*), they differ in some important respects. The effects of additions of O2 and Ar have been also studied and can be explained well by the same two mech... |
| Databáze: | OpenAIRE |
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