Stereodynamics of photon-induced reactions via Doppler-resolved laser induced fluorescence spectroscopy: photodissociation of HONO2 and the reaction of O(1D) with CH4

  1. Brouard, M. 1
  2. Duxon, S. 1
  3. Enriquez, P.A. 1
  4. Simons, J.P. 1
  1. 1 University of Nottingham
    info

    University of Nottingham

    Nottingham, Reino Unido

    ROR https://ror.org/01ee9ar58

Zeitschrift:
Journal of the Chemical Society. Faraday transactions Print

ISSN: 0956-5000

Datum der Publikation: 1993

Ausgabe: 89

Nummer: 10

Seiten: 1435-1442

Art: Artikel

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DOI: 10.1039/FT9938901435 SCOPUS: 2-s2.0-0000556710 GOOGLE SCHOLAR

Andere Publikationen in: Journal of the Chemical Society. Faraday transactions Print

Zusammenfassung

The application of polarised, Doppler-resolved laser-induced fluorescence (LIF) probing of the products scattered from photon-induced 'half-collision' (photodissociation) and 'full-collision' (bimolecular reaction) processes is developed to include the velocity dependence of their stereodynamics. Fourier-transform inversion procedures are used to derive the products' speed distributions W(v′) and vector correlations βij(v′) (a) in the photodissociation of HONO2 and (b) in the bimolecular reaction of O(1D) with CH4. In the former example, they provide new insight into the stereodynamics of the photodissociation, HONO2 + hν → HO(v = 0, N) + NO2(X̃, Ã) In the latter, together with newly developed LAB → CM simulation methods, they provide new insight into the stereodynamics of the reaction, O(1D) + CH4 → OH(v = 4, N) + CH3 The OH is shown to be generated with its rotational angular momentum j′, constrained to lie in a plane directed perpendicular to its centre-of-mass relative velocity, k′.