Electron capture induced decomposition of the benzene C6H62+ ion

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

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

The first results with the electron capture induced decomposition (ECID) method are presented in this paper in the case of the benzene doubly charged molecular ion. Several collision gases were used and it was determined that the ground-state C6H62+ ion is the precursor in all reaction channels, and the ground-state C6H6•+ ion is formed at threshold. Ions from rare gas targets were always formed in their ground states but ions from molecular targets could be formed in excited states as well. The internal energy distribution of the product C6H6•+ ion was determined by deconvolution of the ECID spectrum and the breakdown graph. An unexpected relationship was found between the ionization energy of the target and the mean internal energy of C6H6•+. Collisions on higher ionization energy targets resulted in higher internal energy C6H6•+ ions. Comparisons between the ECID and the mass spectra indicated the involvement of two isolated states in the fragmentation of benzene. Among other results a relationship was found between the translational energy release in ECID and the internal energy; collision cross sections were studied; and a new method for the determination of double ionization energies is suggested.

Original languageEnglish
Pages (from-to)3569-3577
Number of pages9
JournalJournal of Physical Chemistry
Volume90
Issue number16
Publication statusPublished - 1986

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Benzene
electron capture
benzene
Ions
Decomposition
internal energy
decomposition
Electrons
Ionization potential
ions
Ground state
ionization
collisions
ground state
energy
Noble Gases
molecular ions
mass spectra
Deconvolution
Inert gases

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Electron capture induced decomposition of the benzene C6H62+ ion. / Vékey, K.; Brenton, A. Gareth; Beynon, John H.

In: Journal of Physical Chemistry, Vol. 90, No. 16, 1986, p. 3569-3577.

Research output: Contribution to journalArticle

Vékey, K, Brenton, AG & Beynon, JH 1986, 'Electron capture induced decomposition of the benzene C6H62+ ion', Journal of Physical Chemistry, vol. 90, no. 16, pp. 3569-3577.
Vékey, K. ; Brenton, A. Gareth ; Beynon, John H. / Electron capture induced decomposition of the benzene C6H62+ ion. In: Journal of Physical Chemistry. 1986 ; Vol. 90, No. 16. pp. 3569-3577.
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