The dynamics of the 308 nm photochemical reaction between CH3Br and H coadsorbed on Pt(111) are discussed. Photoinduced dissociative electron attachment of adsorbed CH3Br produced energetic methyl radicals which abstracted surface H to give desorbing methane photoproduct. Photoproduct angular and translational energy distributions were derived from time-of-flight spectra to a quadrupole mass spectrometer following pulsed excimer laser irradiation of the surface.
Ian A. Harrison, Ian A. Harrison,
"Dynamics of laser-initiated reactions on Pt(111)", Proc. SPIE 1858, Laser Techniques for State-Selected and State-to-State Chemistry, (22 April 1993); doi: 10.1117/12.143103; https://doi.org/10.1117/12.143103