INFLUENCE OF ELECTRON-HOLE PAIR EXCITATION ON DISSOCIATIVE STICKING

Using a semiclassical model that treats the phonons and electrons of a metal quantally within a second quantization formalism and the dynami cs of the incoming molecule classically, we have calculated the dissoc iative sticking and energy accommodation as a function of band structu re for the electron-hole pair excitation. It is shown that the electro nic band structure has some influence on the reactivity, such that the inclusion of this aspect makes the 111 surface more reactive than the 100 surface-in agreement with experimental findings.