VIBRATIONAL LINEWIDTH OF CO ADSORBED ON PT(111)

被引：4

作者：

BRAKO, R

BRENIG, W

机构：

[1] TECH UNIV MUNICH,DEPT PHYS,D-85747 GARCHING,GERMANY

[2] RUDJER BOSKOVIC INST,ZAGREB 41001,CROATIA

来源：

SURFACE SCIENCE | 1995年 / 336卷 / 1-2期

关键词：

CARBON MONOXIDE; CONSTRUCTION AND USE OF EFFECTIVE INTERATOMIC INTERACTIONS; INFRARED ABSORPTION SPECTROSCOPY; LOW INDEX SINGLE CRYSTAL SURFACES; PLATINUM; VIBRATIONS OF ADSORBED MOLECULES;

D O I：

10.1016/0039-6028(95)00515-3

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：

We show that vibrational spectra of molecules chemisorbed on metal surfaces can be affected by anharmonicity much more than usually estimated if various vibrational coordinates are coupled by non-diagonal terms. The strong coverage dependence of the linewidth of the adsorbate-metal vibrations of CO adsorbed on Pt(111) can be attributed to the multiphonon decay, enhanced by a strong coupling of the adsorbate motion to the in-plane displacement of the surrounding surface atoms.

引用

页码：27 / 36

页数：10

共 18 条

[1] PT(111) RECONSTRUCTION INDUCED BY ENHANCED PT GAS-PHASE CHEMICAL-POTENTIAL [J].