Translational energy dependence of reaction mechanism: Xe++CH4→XeH++CH3 | Zendy

Gary D. Miller | Zendy; L. W. Strattan | Zendy; C. L. Cole | Zendy; Peter M. Hierl | Zendy

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Translational energy dependence of reaction mechanism: Xe++CH4→XeH++CH3

Author(s) -

Gary D. Miller,

L. W. Strattan,

C. L. Cole,

Peter M. Hierl

Publication year - 1981

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.441715

Subject(s) - translational energy , atomic physics , range (aeronautics) , chemistry , reaction mechanism , cartesian coordinate system , ion , reaction dynamics , center of mass (relativistic) , kinematics , scattering , mechanism (biology) , physics , collision , molecule , materials science , optics , classical mechanics , catalysis , excited state , biochemistry , organic chemistry , energy–momentum relation , composite material , geometry , mathematics , computer security , quantum mechanics , computer science

The dynamics of the exoergic ion–molecule reaction Xe+(CH4,CH3)XeH+ were studied by chemical accelerator techniques over the relative translational energy range 0.2 to 8 eV. Results of the kinematic measurements are reported as scattering intensity contour maps in Cartesian velocity space. Center‐of‐mass angular and energy distributions, derived from these maps, provide information on the reaction mechanism and on the partitioning of available energy between internal and translational modes in the products. The results suggest that reaction proceeds via the formation of a long‐lived complex at low collision energies (below 0.5 eV) and by a direct mechanism approaching spectator stripping at higher energies.

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