De Meijere, Arne; Hirayama, Hiroyuki; Hasselbrink, Eckart:
Adsorbate structure and angular dependence of desorption dynamics: molecular oxygen photodesorbed from palladium(111).
1993
In: Physical review letters, Jg. 70 (1993), Heft 8, S. 1147 - 1150
Artikel/Aufsatz in Zeitschrift1993Chemie
Titel:
Adsorbate structure and angular dependence of desorption dynamics: molecular oxygen photodesorbed from palladium(111).
Autor(in):
De Meijere, Arne; Hirayama, Hiroyuki; Hasselbrink, EckartLSF
Erscheinungsjahr
1993
DOI:

Abstract:

The O2 adsorbed on Pd(111) is photodesorbed and photodissociated when irradiated with 5.0 eV light. Polar and azimuthal angle-resolved time-of-flight spectra of directly photodesorbed neutral mols. were measured. Both desorption flux and the translational energy depend on the desorption angle. In particular, a marked max. in the translational energy at a polar angle of 60 Deg with C3v symmetry is found for the superoxo species. This behavior apparently is correlated with the binding geometry of the mols. before desorption.