State-selected ion-molecule reactions with VUV synchrotron radiation : the O$_2^+$ $+$ C$_3$H$_6$ case - Archive ouverte HAL Accéder directement au contenu
Poster De Conférence Année : 2019

State-selected ion-molecule reactions with VUV synchrotron radiation : the O$_2^+$ $+$ C$_3$H$_6$ case

Résumé

O2 + molecular ion is produced by photoionization close to threshold at SOLEIL, DESIRS beam line. By means of coincidence methods, ions are prepared in selected vibrational and electronic states (X, v=0,3,15 and a, v=3). Their reactivity with the propene in single collision regime is studied in the guided ion beam in-strument CERISES, adding ability to vary the collision energy. Absolute reaction cross section and branching ratio are recorded for the 5 most intense reactive channels, described as dissociative charge transfer. Contrasted effects of internal and collision energy are observed.

Dates et versions

hal-02870858 , version 1 (16-06-2020)

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Roland Thissen, Claire Romanzin, Joël Lemaire, S. Thomas, Christian Alcaraz. State-selected ion-molecule reactions with VUV synchrotron radiation : the O$_2^+$ $+$ C$_3$H$_6$ case. 31st International Conference on Photonic, Electronic, and Atomic Collisions, Jul 2019, Deauville, France. J.Phys.Conf.Ser., 1412 (23), pp.232009, 2020, ⟨10.1088/1742-6596/1412/23/232009⟩. ⟨hal-02870858⟩
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