Translational spectroscopy of N+ and O+ fragments from 5 keV collision-induced dissociation of NO+ ions by helium
Identifieur interne : 000F25 ( Main/Exploration ); précédent : 000F24; suivant : 000F26Translational spectroscopy of N+ and O+ fragments from 5 keV collision-induced dissociation of NO+ ions by helium
Auteurs : Geneviève Comtet [France] ; Paul Guy Fournier [France]Source :
- Chemical Physics [ 0301-0104 ] ; 1983.
Abstract
Laboratory kinetic energy distributions of N+ and O+ fragments arising from 5 keV collision-induced dissociation of parent NO+ ions with helium, are reported. These observations allow us to determine both the amount of translational energy converted into internal energy of NO+* and the relative translational energy of the (pre)dissociating fragments. The O− - N relative kinetic energy distribution extends from 0 to 18 eV, and a collision-induced transition to level of a predissociating state is shown to have lifetimes ranging from 40 to 140 ns. The N− + O distribution lies between 0 and 11 eV and involves transition to five (pre)dissociating states, three of which have the energies of 29±0.2 eV, 34±0.3 eV, 34.5±0.3 eV with respect to the ground state of NO.
Url:
DOI: 10.1016/0301-0104(83)85316-6
Affiliations:
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