Nascent OH(2Pi) product state distributions from the reaction of O(1D) with ethylene. A laser induced fluorescence study.

  1. González, M. 1
  2. Puyuelo, M.P. 2
  3. Hernando, J. 1
  4. Martínez, R. 2
  5. Sayós, R. 1
  6. Enríquez, P.A. 2
  1. 1 Universitat de Barcelona
    info

    Universitat de Barcelona

    Barcelona, España

    ROR https://ror.org/021018s57

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Revista:
Chemical Physics Letters

ISSN: 0009-2614

Año de publicación: 2001

Volumen: 346

Número: 1-2

Páginas: 69-80

Tipo: Artículo

DOI: 10.1016/S0009-2614(01)00953-8 SCOPUS: 2-s2.0-0035965181 WoS: WOS:000171260400011 GOOGLE SCHOLAR

Otras publicaciones en: Chemical Physics Letters

Resumen

The full characterization of the OH(X2Π, v″=0-3, N″, J″, Λ″) product state distributions for the O(1D)+C2H4→OH+C2H3 reaction was experimentally performed using the laser-induced fluorescence (LIF) technique. Statistical spin-orbit distributions were obtained, while some preference for the formation of the Π(A′) Λ-doublet level was observed. The rovibrational populations obtained suggest that the reaction preferentially evolves via insertion, yielding rovibrationally cold OH through slow decomposition of an alcohol-type collision complex and rovibrationally excited OH by fast decomposition. Moreover, some evidences were found about the implication of an abstraction mechanism, which would produce rotationally cold and highly vibrationally excited OH. © 2001 Elsevier Science B.V.