Ion imaging study of dissociative charge transfer in the N{sub 2}{sup +}+ CH{sub 4} system

Journal Article · Thu Mar 28 04:00:00 EDT 2013 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4796205· OSTI ID:22105437

Linsen, Pei; Farrar, James M. ^[1]

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1. Department of Chemistry, University of Rochester, Rochester, New York 14627 (United States)

The velocity map ion imaging method is applied to the dissociative charge transfer reactions of N{sub 2}{sup +} with CH{sub 4} studied in crossed beams. The velocity space images are collected at four collision energies between 0.5 and 1.5 eV, providing both product kinetic energy and angular distributions for the reaction products CH{sub 3}{sup +} and CH{sub 2}{sup +}. The general shapes of the images are consistent with long range electron transfer from CH{sub 4} to N{sub 2}{sup +} preceding dissociation, and product kinetic energy distributions are consistent with energy resonance in the initial electron transfer step. The branching ratio for CH{sub 3}{sup +}:CH{sub 2}{sup +} is 85:15 over the full collision energy range, consistent with literature reports.

• OSTI ID: 22105437
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 12 Vol. 138; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
BRANCHING RATIO
CATIONS
CHARGE EXCHANGE
COLLIDING BEAMS
DISSOCIATION
ELECTRON TRANSFER
EV RANGE
IMAGES
ION-MOLECULE COLLISIONS
KINETIC ENERGY
METHANE
NITROGEN
RESONANCE
TRANSFER REACTIONS