Hydrogen, scattering from

D.R. Herrick, Resonance-channel quantum numbers in electron-hydrogen and proton-hydrogen scattering from group theory of the long-range dipole interaction, Phys. Rev. A 12 (1975) 413. 

It can be seen that, for the N2—W system, the trapping-precursor model for adsorption is all-important. It should not be expected that this is so all the time. This is clearly shown by the work of Hayward and Walters [401] who measured the angular distribution of hydrogen scattered from W 100 at 300 K as a function of the amount of hydrogen... 

Fig. 29. A polar plot of hydrogen scattered from clean W 100 at an incidence angle of 34°. (From ref. 401.)...

The results may briefly be summed up as follows. No favored angles for electron scattering from hydrogen or from helium were observed, and in the case of helium the results obtained by Dymond were not able to be reproduced. 

Figure 26. Comparison of the resonance scattering from H atoms or H+ obtained by fitting the Fano line shape in HCIO4 (open squares) and H2SO4 (closed squares) with the adsorbed hydrogen coverage (closed circles) and sulfate adsorption (open circles) obtained by cyclic voltammetry. (Reproduced with permission from ref 50. Copyright 2001 The Electrochemical Society, Inc.)...

Figure 6. Comparison of observed and calculated vibrational spectra for a butane monolayer (19). (Topi Observed spectrum for monolayer butane adsorbed on a graphitized carbon powder at 80 K. The background inelastic scattering from the substrate has been subtracted, (a) Calculated spectrum for the butane molecule adsorbed with its carbon skeleton parallel to the graphite layers and the bottom layer of four hydrogen atoms bonded to the surface with force constants listed in Table I. (b) Same orientation but only the carbon atoms are bonded to the surface with a force constant of 0.12 mdyn/A. (Bottom) Butane carbon plane perpendicular to the graphite layers and the bottom layer of four hydrogen atoms bonded to the surface with the same force constants as in the parallel orientation.

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