Coupling to dipole-forbidden modes: CO on Pt(111) studied by infrared spectroscopy

被引：31

作者：

Engstrom, U ^{[1
]}

Ryberg, R ^{[1
]}

机构：

[1] GOTHENBURG UNIV, S-41296 GOTHENBURG, SWEDEN

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.78.1944

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The metal-molecule stretch vibrational mode of CO chemisorbed in the c(4x2) structure on a Pt(111) surface at 100 K has been studied using infrared spectroscopy. For the bridge-bended molecules the infrared absorption spectra reveal a doublet structure, which is assigned to a Fermi-resonance between the stretch mode and a combination of parallel, dipole-forbidden vibrational modes. Furthermore, no so-called antiabsorption connected to the frustrated rotation is detected, in contrast to what is found on close-packed copper surfaces.

引用

页码：1944 / 1947

页数：4

共 17 条

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