Charge separation (coulomb explosion) processes of doubly charged cations of sandwich compounds in the gas phase: evidence for the junction of two C5H5 units

Thomas Drewello, Carlito B Lebrilla, Helmut Schwarz, Teodor Ast

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The charge separation reactions (coulomb explosion) of the ferrocene, cobaltocene, and nickelocene dications, generated by electron impact ionization in the gas phase, are reported. These sandwich dications display a common behaviour in their unimolecular decomposition reactions, which are characterized by two distinct charge separation pathways. One corresponds to the reaction [MC10H10]2+ → [MC5H5]+ + C5H5 +, and the other to the generation of C10H10 +{radical dot} and M+ (M Fe, Co, Ni). From the translational energy releases, associated with the charge separation processes, the intercharge distances of the exploding dications in their transition structures have been calculated. The results demonstrate that, irrespective of the nature of the transition metal ion M, the interchange distance for the formation of [MC5H5]+/C5H+ 5 is 5.0 Å and 6.2 Å for the generation of C10H+ 10 and M+.

Original languageEnglish (US)
Pages (from-to)333-338
Number of pages6
JournalJournal of Organometallic Chemistry
Volume339
Issue number3
DOIs
StatePublished - Feb 2 1988
Externally publishedYes

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Explosions
polarization (charge separation)
explosions
Cations
Gases
Positive ions
Metals
Electrons
Ions
vapor phases
cations
Impact ionization
Interchanges
electron impact
Transition metals
Metal ions
metal ions
transition metals
Decomposition
decomposition

ASJC Scopus subject areas

  • Biochemistry
  • Chemical Engineering (miscellaneous)
  • Inorganic Chemistry
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Science (miscellaneous)
  • Materials Chemistry

Cite this

Charge separation (coulomb explosion) processes of doubly charged cations of sandwich compounds in the gas phase : evidence for the junction of two C5H5 units. / Drewello, Thomas; Lebrilla, Carlito B; Schwarz, Helmut; Ast, Teodor.

In: Journal of Organometallic Chemistry, Vol. 339, No. 3, 02.02.1988, p. 333-338.

Research output: Contribution to journalArticle

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abstract = "The charge separation reactions (coulomb explosion) of the ferrocene, cobaltocene, and nickelocene dications, generated by electron impact ionization in the gas phase, are reported. These sandwich dications display a common behaviour in their unimolecular decomposition reactions, which are characterized by two distinct charge separation pathways. One corresponds to the reaction [MC10H10]2+ → [MC5H5]+ + C5H5 +, and the other to the generation of C10H10 +{radical dot} and M+ (M Fe, Co, Ni). From the translational energy releases, associated with the charge separation processes, the intercharge distances of the exploding dications in their transition structures have been calculated. The results demonstrate that, irrespective of the nature of the transition metal ion M, the interchange distance for the formation of [MC5H5]+/C5H+ 5 is 5.0 {\AA} and 6.2 {\AA} for the generation of C10H+ 10 and M+.",
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