Accession Number : ADA118409

Title :   Competing Dissociation Channels in the Infrared Multiphoton Decomposition of Ethyl Vinyl Ether.

Descriptive Note : Technical rept.,


Personal Author(s) : Huisken,F ; Krajnovich,D ; Zhang,Z ; Shen,Y R ; Lee,Y T

PDF Url : ADA118409

Report Date : 14 Jul 1982

Pagination or Media Count : 47

Abstract : Infrared multiphoton decomposition of ethyl vinyl ether (EVE) has been investigated by the crossed laser-molecular beam technique. Competition is observed between the two lowest-energy dissociation channels: (1) EVE yield CH3CHO + C2H4, and (2) EVE yield CH2CHO + C2H5. Center-of-mass product translational energy distributions were obtained for both dissociation channels. The products of reactions (1) and (2) are formed with mean translational energies of 31 kcal/mole and 5 kcal/mole, respectively. The branching ratio shifts dramatically in favor of the higher energy radical producing channel as the laser intensity and energy fluence are increased, in agreement with the qualitative predictions of statistical unimolecular rate theory. (Author)

Descriptors :   *Ethyl ethers, *Vinyl radicals, *Photodissociation, Photons, Infrared radiation, Laser induced fluorescence, Molecular beams, Excitation, Molecules, Radiation absorption, Molecular states, Spectral energy distribution, Fission, Reaction kinetics, Decay, Statistical analysis

Subject Categories : Organic Chemistry
      Radiation and Nuclear Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE