Accession Number:

ADA099323

Title:

Some Laser Photochemical Reactions of Nitrogen-Containing Compounds with Ethylenes.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY MISSILE COMMAND REDSTONE ARSENAL AL RESEARCH DIRECTORATE

Report Date:

1980-10-01

Pagination or Media Count:

27.0

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

Subject Categories:

  • Inorganic Chemistry
  • Radiation and Nuclear Chemistry
  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE