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

Kalasinsky, V. F.; Warren, L. C.; Merritt, J. A.

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

Active / Technical Report | Accession Number: ADA099323 |

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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

Author(s):

Kalasinsky, V. F. ; Warren, L. C. ; Merritt, J. A.

Author Organization(s):

ARMY MISSILE COMMAND REDSTONE ARSENAL AL RESEARCH DIRECTORATE

Descriptive Note:

Technical rept.,

Pagination:

0027

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

DRSMI/RR-81-1-TR, SBI-AD-E950 118

Monitor Series:

AD-E950 118

Subject Terms

Joint Capability Areas:

JCA_5_Command and Control; JCA_1.2.7_Experimentation; JCA_5.5_Direct; JCA_5.2_Understand; JCA_5.5.1_Communicate Intent and Guidance

Modernization Areas:

Fully Networked C3

Communities of Interest:

C4I

Descriptor(s):

*PHOTOCHEMICAL REACTIONS, *INFRARED LASERS, *CHEMICAL REACTIONS, *CARBON DIOXIDE LASERS, *CONTINUOUS WAVE LASERS, *ETHYLENES, *NITROGEN COMPOUNDS, MOLECULAR VIBRATION, MOLECULAR STATES, AMMONIA, ACETYLENE, ABSORPTION, INFRARED RADIATION, INFRARED SPECTRA, FLUORINATED HYDROCARBONS, HYDROGEN FLUORIDE, HYDROGEN CYANIDE, HYDRAZINE DERIVATIVES

Field(s)/Group(s):

Inorganic Chemistry, Radiation and Nuclear Chemistry, Lasers and Masers

Keyword(s):

Tetrafluorohydrazine, CW lasers, Nitrogen trifluoride, 1, 1 difluoroethylene

Report Date:

1980 Oct 01