Reanalysis of the Rh(111)+(2x2)-3NO structure using automated tensor LEED

被引：37

作者：

Zasada, I

Van Hove, MA ^{[1
]}

Somorjai, GA

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[2] Univ Lodz, Dept Solid State Phys, PL-90131 Lodz, Poland

[3] Univ Calif Davis, Dept Phys, Livermore, CA 95616 USA

[4] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

SURFACE SCIENCE | 1998年 / 418卷 / 03期

关键词：

chemisorption; electron-solid interactions; low energy electron diffraction; low index single crystal surfaces; metallic surfaces; nitrogen oxides; rhodium;

D O I：

10.1016/S0039-6028(98)00782-1

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：

The structure of Rh(111)+(2 x 2)-3NO has been reanalyzed using automated tensor LEED, in view of new results which strongly suggest different molecular adsorption sites to those previously concluded. The reanalysis confirms and further refines the new model, according to which the NO molecules occupy top sites and both kinds of three-fold hollow sites. These findings are at odds with earlier conclusions from vibrational spectroscopy, which assigned the molecules to top and bridge sites. Together with other metal/NO and metal/CO systems described in the literature, the Rh(111)+(2 x 2)-3NO phase once again demonstrates that great care has to be taken in adsorption site assignment using the C-O and especially the N-O stretch frequencies. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：L89 / L93

页数：5

共 18 条

[1] On the adsorption sites for CO on the Rh(111) single crystal surface [J].