Some Laser Photochemical Reactions of Nitrogen-Containing Compounds with Ethylenes.
Abstract
Some laser-induced reactions of tetrafluorohydrazine (N2F4) or nitrogen trifluoride (NF3) with 1,2-difluoroethylene (C2H2F2) or ethylene (C2H4) have been studied. Multiphoton absorption of infrared radiation from a cw CO2 laser initiates each of these reactions, and the major products have been identified as hydrogen fluoride (HF), CF4, CF3CN, CF3H, C2F4, and C2F6. The visible emission which accompanies the reactions has been shown to be due, in part, to transient C2 and CN. Possible mechanisms for these reactions are discussed. A reaction between ammonia (NH3) and C2H2F2 has also been studied and it probably proceeds through a non-equilibrium thermal process rather than by multiphoton dissociation as in the other cases. The main products have been identified as acetylene (C2H2) and hydrogen cyanide (HCN). The role of infrared laser-induced chemistry in general as a viable alternative to pyrolytic reactions is also discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1980
- Accession Number
- ADA099323
Entities
People
- J. A. Merritt
- L. C. Warren
- V. F. Kalasinsky
Organizations
- United States Army Aviation and Missile Command