Isotope Effect in the Vibrational Predissociation of van der Waals Molecules: Complexes of Glyoxal With H2 and D2 | Zendy

J. A. Beswick | Zendy; Nadine Halberstadt | Zendy; C. Jouvet | Zendy; B. Soep | Zendy

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Isotope Effect in the Vibrational Predissociation of van der Waals Molecules: Complexes of Glyoxal With H2 and D2

Author(s) -

J. A. Beswick,

Nadine Halberstadt,

C. Jouvet,

B. Soep

Publication year - 1982

Publication title -

laser chemistry

Language(s) - English

Resource type - Journals

eISSN - 1026-8014

pISSN - 0278-6273

DOI - 10.1155/lc.1.77

Subject(s) - glyoxal , chemistry , van der waals force , diabatic , molecule , photodissociation , kinetic isotope effect , photochemistry , fluorescence , laser induced fluorescence , deuterium , computational chemistry , atomic physics , organic chemistry , physics , quantum mechanics , adiabatic process , thermodynamics

In this work photodissociation studies of glyoxal-H 2 (D 2 ) molecules have been conducted in order to analyze the effect of the mass in the vibrational predissociation of van der Waalscomplexes. The glyoxal-H 2 (D 2 ) molecules have been formed in a supersonic expansion andphotodissociated by means of a tunable dye laser. The final state of the glyoxal fragmentshas been determined by the analysis of the fluorescence spectrum. A significant isotope effecton the branching ratios for predissociation has been found. An interpretation in terms of adistorted wave diabatic treatment is presented.

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