Inelastic scattering process of H2O on Pt(1 1 1) studied by supersonic molecular beam techniques

In order to understand the inelastic scattering process, the incident kinetic energy dependence of the angular intensity distribution is measured of H2O scattered from Pt(1 1 1) at 500 K. The comparisons of H2O scattering with Ne scattering from Pt(1 1 1) and with the prediction of the simple classical binary collision model reveal that not only phonon creation in the surface but also a large amount of H2O rotational mode excitation and/or chattering scattering takes place during collision, especially for the high incident kinetic energy conditions.