268 nm photodissociation of ClN3: a femtosecond velocity-map imaging study. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Chemistry Chemical Physics Année : 2014

268 nm photodissociation of ClN3: a femtosecond velocity-map imaging study.

Résumé

We report the first time-resolved study of the photochemistry of chlorine azide (ClN3) by femtosecond velocity-map imaging (fs-VMI). The dissociation dynamics are initiated at 4.6 eV and the photofragments are detected by multiphoton ionization using an intense laser field centered at 803 nm. A dissociation time of 262 ± 38 fs was measured from the rising time of the co-fragments N3 and Cl. The time dependency of the angular distribution of N3, which converges from β2 ∼ 2 to β2 = 1.61 ± 0.07 in 170 ± 45 fs, reveals the parallel nature of the transition dipole moment.
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hal-00904852 , version 1 (15-11-2013)

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David Staedter, Nicolas Thiré, Elsa Baynard, Peter C Samartzis, Valérie Blanchet. 268 nm photodissociation of ClN3: a femtosecond velocity-map imaging study.. Physical Chemistry Chemical Physics, 2014, 16 (2), pp.540-549. ⟨10.1039/c3cp53507j⟩. ⟨hal-00904852⟩
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