Kinetics of the N+NCO reaction at 298 K
The rate constant for the reaction of NCO (X 2Π) radicals with N(4S) atoms at room temperature has been determined to be (5.5 ± 0.8) × 10-11 cm3 molecule-1 s-1 by direct measurement by laser-induced fluorescence. This result is 70% higher than a value estimated from shock tube data at 1700 K, and su...
| Main Authors: | , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
1997
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| 总结: | The rate constant for the reaction of NCO (X 2Π) radicals with N(4S) atoms at room temperature has been determined to be (5.5 ± 0.8) × 10-11 cm3 molecule-1 s-1 by direct measurement by laser-induced fluorescence. This result is 70% higher than a value estimated from shock tube data at 1700 K, and suggests that the reaction takes place over a largely attractive potential surface. When the result is combined with high temperature data, it suggests that the major products of the reaction are N2 + CO, but as these cannot be formed in their ground electronic states in a spin-allowed process, arguments are proposed for the formation of triplet state products. No IR emission could be assigned as originating from CO, and possible reasons for this are discussed. |
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