title: 268 nm photodissociation of ClN3: a femtosecond velocity-map imaging study.
abstract: 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.
authors.affiliation: University of Toulouse, CNRS, Laboratoire Collisions Agrégats Réactivité, IRSAMC, F-31062 Toulouse, France. blanchet@celia.u-bordeaux1.fr.
authors.forename: D
authors.initials: D
authors.lastname: Staedter
authors.forename: N
authors.initials: N
authors.lastname: Thiré
authors.forename: E
authors.initials: E
authors.lastname: Baynard
authors.forename: Peter C
authors.initials: PC
authors.lastname: Samartzis
authors.forename: V
authors.initials: V
authors.lastname: Blanchet