L. Siller et al., RESONANT EXCITATION OF LOW-FREQUENCY MODES IN ELECTRON-SCATTERING BY PHYSISORBED O2 ON PT(111), The Journal of chemical physics, 99(9), 1993, pp. 7175-7178
The lineshape of the v=0-1 vibrational mode in the high resolution ele
ctron energy loss spectrum of physisorbed O2 on Pt (111) shows discret
e loss peaks attributed to a low frequency molecule-surface vibration
and its overtones. The energy and angular dependence of these vibratio
ns is consistent with the molecular negative ion resonance mechanism p
redicted by Gadzuk.