ENHANCED DIFFRACTION OF VIBRATIONALLY EXCITED MOLECULES FROM SURFACES

被引：24

作者：

DARLING, GR ^{[1
]}

HOLLOWAY, S ^{[1
]}

机构：

[1] UNIV LIVERPOOL,DEPT CHEM,LIVERPOOL L69 3BX,ENGLAND

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 191卷 / 05期

关键词：

D O I：

10.1016/0009-2614(92)85398-T

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

H-2 scattering from Cu is simulated using quantum dynamics and a 3D model potential. This incorporates motion perpendicular and parallel to the surface, and the vibration of the molecule. For a late barrier potential, considerably enhanced diffraction is observed for incident molecules in the upsilon = 1 vibrational state over those in the upsilon = 0 state. This is not found for a system with an early barrier. The results are explained by considering the topologies of vibrationally adiabatic potentials, derived from the full 3D potentials.

引用

页码：396 / 400

页数：5

共 18 条

[1] A SEARCH FOR VIBRATIONAL CONTRIBUTIONS TO THE ACTIVATED ADSORPTION OF H-2 ON COPPER [J].