Yields of singlet nitrenes from halogen atom—azide molecule reactions
✍ Scribed by A. T. Pritt JR; D. Patel; R. D. Coombe
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 854 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0538-8066
No coin nor oath required. For personal study only.
✦ Synopsis
Chemiluminescence from the a l A and 6'8' excited electronic states of nitrogen halide diatomics is observed when HN, is allowed to react with mixtures of halogen atoms in a discharge-flow apparatus. Excited NF (a'A) is produced by the F + HN, reaction, and NC1 (a'A, b'8') and NBr (dA, 6'8') are produced by the F, C1, + HN, and F, Br + HN, reactions, respectively. In the low-density limit, the yield of NF(a'A) was found to be near unity. The yields of the b'8+ states of NCl and NBr were determined to have a lower limit of ca. 10%. A number of results from these experiments, including direct observation of N, radicals in the flow, support a hypothetical mechanism in which N, acts as an intermediate. A second possible mechanism proceeding via an HNF intermediate cannot be ruled out.