A LEED CRYSTALLOGRAPHIC ANALYSIS FOR THE C(2X2) SURFACE-STRUCTURE FORMED BY THE CHEMISORPTION OF PH3 ON THE RH(100) SURFACE

被引：5
|
作者：
LOU, JR
MITCHELL, KAR
机构：
[1] Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1
来源：
SURFACE SCIENCE | 1992年 / 268卷 / 1-3期
关键词：
D O I：
10.1016/0039-6028(92)90934-X
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：
An analysis with low-energy electron diffraction (LEED) is reported for the c(2 x 2) structure obtained by the adsorption and dissociation of PH3 on the Rh(100) surface. Intensity-versus-energy curves measured for 12 independent beams were compared with those from multiple scattering calculations for overlayer structural models in which the metal atoms remain in their regular bulk positions. The best correspondence between the two sets of beam intensities occurs with P atoms chemisorbed in the "expected" 4-coordinate bonding sites, and with the nearest-neighbour P-Rh bond distance equal to 2.13 angstrom.
引用
收藏
页码：L274 / L278
页数：5
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