Fragmentation Dynamics and Energy Partitioning in Dissociative Attachment on Triatomic Molecules

  • Michel Tronc
Conference paper


The dissociative attachment process on a triatomic molecule can be considered as a two step process: a vertical electron attachment to the molecule in its ground electronic and vibrational state, followed by dissociation of the short lived negative ion (resonance state) on its potential energy surface. The dissociation step, that can be seen as a halfcollision process, has some specific characteristics: i) it is always competing with the autodetaching process of the extra electron, yielding rotational-vibrational or (and) electronic excitation of the neutral molecule; ii) the resonant ABC state can be formed in a well-defined internal energy level fixed by the incident electron energy Ei.


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Copyright information

© Springer-Verlag New York Inc. 1987

Authors and Affiliations

  • Michel Tronc
    • 1
  1. 1.Laboratoire de Chimie PhysiqueUniversité Pierre et Marie CurieParis, Cedex 05France

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