Physics – Chemical Physics
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jchph..98.2054m&link_type=abstract
Journal of Chemical Physics (ISSN 0021-9606), vol. 98, no. 3, p. 2054-2065.
Physics
Chemical Physics
94
Free Radicals, Hydrogen Atoms, Methane, Photochemical Reactions, Photodissociation, Atmospheric Chemistry, Ground State, Planetary Atmospheres, Titan
Scientific paper
The use of H(D)-atom photofragment translational spectroscopy to study the photodissociation of CH4(CD4) at 121.6 nm indicates that simple C-H bond fission is the dominant primary process following excitation at this wavelength. About a fourth of the resulting CH3 fragments possess so high an internal energy that they must undergo subsequent unimolecular decay; these may be predominantly CH and H2 fragments. Current models of hydrocarbon photochemistry must be reconsidered, in view of the CH3 and CH fragment yields of CH4 photodissociation at 121.6 nm.
Ashfold Michael N. R.
Dixon Richard N.
Lambert I. R.
Mordaunt D. H.
Morley G. P.
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