Formation and dissociation of doubly ionized methane

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.449815· OSTI ID:5646004

Fournier, P G; Fournier, J; Salama, F; Richardson, P J; Eland, J H.D.

Translational energy spectra of H/sup -/ ions arising from double charge transfer to 1.5--7.0 keV protons from methane have been recorded and interpreted as the single and double ionization spectra of CH/sub 4/. The excited states of CH/sup + +//sub 4/ are not resolved, but a large broad peak of 4 eV half-width is observed, starting at around 35 eV, with a long tail extending to 44 eV. The peak maximum is at 38.6 eV. Four dissociation reactions of CH/sup 2 +//sub 4/ have been observed using photoion--photoion coincidence techniques with HeII light. All the principal discrepancies in comparisons between the experimental and theoretical work on CH/sup 2 +//sub 4/ can now be reconciled.

• Research Organization: Laboratoire de Spectroscopie de Translation, Universite de Paris Sud, 91400 Orsay, France
• OSTI ID: 5646004
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 83:1; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKANES
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
DISSOCIATION
ENERGY RANGE
HYDROCARBONS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONIZATION
IONS
KEV RANGE
KEV RANGE 01-10
METHANE
MOLECULAR IONS
MOLECULE COLLISIONS
ORGANIC COMPOUNDS