CHARACTERIZATION OF 2 DIFFERENT ADSORPTION STATES FOR O ON CU(100) - IONIC VERSUS COVALENT BONDING

被引：17

作者：

ARVANITIS, D ^{[1
]}

COMELLI, G ^{[1
]}

LEDERER, T ^{[1
]}

RABUS, H ^{[1
]}

BABERSCHKE, K ^{[1
]}

机构：

[1] SINCROTRONE TRIESTE,I-34012 TRIESTE,ITALY

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 211卷 / 01期

关键词：

D O I：

10.1016/0009-2614(93)80051-P

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：

By means of temperature-dependent surface extended X-ray absorption fine-structure measurements, two different chemisorption states of O atoms on a Cu(100) surface were confirmed. From a systematic discussion of N and O on Ni(100) we deduce that for reconstructed substrates the bond is more covalent, for the unreconstructed ones more ionic. For the latter case we can determine the charge transfer to the ad-atom to be 0.92(3) e in agreement with theoretical calculations, based on a Madelung form for the pair potential.

引用

页码：53 / 59

页数：7

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