Electron capture-induced decomposition (ECID): A new method to study electron-capture collisions

K. Vékey, A. Gareth Brenton, John H. Beynon

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A new method for the study of electron-capture collisions of doubly charged polyatomic ions is discussed. In the collision, not only electron transfer, but also excitation may take place. If so, the singly charged product ion will fragment and this fragmentation will be characteristic of both its structure and its internal energy. The principle of the experiment is to select a doubly charged ion beam, collide it on a neutral gas and look at the fragmentation following electron capture. The process, in analogy with collision-induced decomposition, may be called electron capture-induced decomposition (ECID). The difficulty with the experiment is that there are various interference reactions, which are discussed in detail. From the ECID process, a wide range of information on the collision complex, threshold energetics, the electronic states of the reactants, total and differential cross-sections, the internal energy distribution in the product ions and, above all, on the energy transfer in the collision can be learned. In connection with this, a new method to determine internal energy distribution is also discussed.

Original languageEnglish
Pages (from-to)277-300
Number of pages24
JournalInternational Journal of Mass Spectrometry and Ion Processes
Volume70
Issue number3
DOIs
Publication statusPublished - Jul 15 1986

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electron capture
Decomposition
decomposition
internal energy
collisions
Electrons
Ions
energy distribution
fragmentation
ions
neutral gases
Electronic states
products
Energy transfer
Ion beams
electron transfer
Gases
Experiments
energy transfer
ion beams

ASJC Scopus subject areas

  • Spectroscopy

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Electron capture-induced decomposition (ECID) : A new method to study electron-capture collisions. / Vékey, K.; Brenton, A. Gareth; Beynon, John H.

In: International Journal of Mass Spectrometry and Ion Processes, Vol. 70, No. 3, 15.07.1986, p. 277-300.

Research output: Contribution to journalArticle

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