THREEFOLD-COORDINATED HOLLOW ADSORPTION SITE FOR C(4X2)-NO/NI(111) - A SURFACE-EXTENDED X-RAY-ABSORPTION FINE-STRUCTURE STUDY

被引：62

作者：

AMINPIROOZ, S

SCHMALZ, A

BECKER, L

HAASE, J

机构：

[1] Fritz-Haber-Institute der Max-Planck-Gesellschaft, W-1000 Berlin 33

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.45.6337

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface-extended x-ray-absorption fine-structure studies on the c(4 x 2)-NO/Ni(111) system yield a nearest-neighbor O-Ni distance of 2.68 +/- 0.05 angstrom and show that NO adsorbs in threefold-coordinated hollow sites. This result casts doubt on the generally used method of absorption site determination via molecular vibrational frequencies, which for this system led to an assignment of a twofold bridge site.

引用

页码：6337 / 6340

页数：4

共 23 条

[1]

ASENSIO MC, UNPUB

[2] STUDY OF ADSORPTION AND DECOMPOSITION OF NO ON CLEAN AND OXYGEN-COVERED NI(111) BY METASTABLE QUENCHING SPECTROSCOPY [J].