VIBRATIONAL AND ROTATIONAL MODES OF PHYSISORBED H-2 AND N(2) ON AG(111) SURFACES

被引：25

作者：

GRUYTERS, M

JACOBI, K

机构：

[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, D-14195 Berlin (Dahlem)

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 225卷 / 4-6期

关键词：

D O I：

10.1016/0009-2614(94)87086-1

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 and N2 physisorbed on a Ag(111) surface are investigated by means of high-resolution electron-energy loss spectroscopy with an energy resolution of 3 meV. The incident electron energy is tuned to negative ion resonances at 3 eV for H-2 and 1.5 eV for N2, and high probability for inelastic electron scattering due to combined vibrational and rotational modes is observed. The external H-2-surface (out-of-plane) vibration and its overtones are found at 8.55, 14.8 and 19.0 meV, well separated from the rotational modes. For N2, anticipated external rotational and translational modes overlap and give rise to structureless inelastic tails of the N2 stretching vibration and its overtones.

引用

页码：309 / 314

页数：6

共 26 条

[1] OBSERVATION OF ROTATIONAL TRANSITIONS FOR H-2, D2, AND HD ADSORBED ON CU(100) [J].