HOLLOW-SITE MOLECULAR ADSORPTION FOR NO ON PT(111) AND NI(111) - INVALIDATING VIBRATIONAL SITE ASSIGNMENT RULES

被引：87

作者：

MATERER, N ^{[1
]}

BARBIERI, A ^{[1
]}

GARDIN, D ^{[1
]}

STARKE, U ^{[1
]}

BATTEAS, JD ^{[1
]}

VANHOVE, MA ^{[1
]}

SOMORJAI, GA ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.48.2859

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dynamical low-energy electron diffraction analyses of ordered structures of NO molecules chemisorbed on Pt(111) and on Ni(111) conclusively yield threefold-coordinated hollow-site adsorption, and reasonable bond lengths. This invalidates long-standing site assignments based on vibrational measurements, calling that approach into question. The results of this study also contrast with the lower-coordinated bridge and top sites found for CO molecules on the same metal surfaces. The NO molecules are oriented close to the surface normal, O end up.

引用

页码：2859 / 2861

页数：3

共 34 条

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