Molecular geometry modifications upon adsorption for N2O:: N and O K-edge NEXAFS

被引：31

作者：

Ceballos, G

Wende, H

Baberschke, K

Arvanitis, D

机构：

[1] Free Univ Berlin, Fachbereich Phys, Inst Expt Phys, D-14195 Berlin, Germany

[2] Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden

来源：

SURFACE SCIENCE | 2001年 / 482卷

关键词：

X-ray absorption spectroscopy; nitrogen oxides; copper; silver;

D O I：

10.1016/S0039-6028(01)00938-4

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 interaction of a monolayer and submonolayer N2O with the Cu(100) and Ag(110) surfaces has been studied using near-edge X-ray absorption fine structure spectroscopy. From a detailed analysis of the angular dependent intensity of the molecular resonances we derive a substrate and coverage dependent bent of the N2O molecules upon adsorption. From the comparison of the pi ' resonance intensity from the terminal N-t, and central N-c nitrogen atoms we conclude that the N2O molecules couple with the Cu surface through the terminal N-t atom in contrast to the Ag surface where the N-c atom is involved. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：15 / 20

页数：6

共 13 条

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