ANHARMONIC SHIFT IN THE STRETCHING FREQUENCY OF O(2) CHEMISORBED ON AG(110)

被引：30

作者：

VATTUONE, L ^{[1
]}

ROCCA, M ^{[1
]}

VALBUSA, U ^{[1
]}

机构：

[1] INFM,I-16146 GENOA,ITALY

来源：

SURFACE SCIENCE | 1994年 / 314卷 / 03期

关键词：

D O I：

10.1016/0039-6028(94)90225-9

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 frequency shift in the stretching mode of peroxo-like O2 on Ag(110) is studied by EELS. The anharmonicity parameter and an estimate of the dissociation energy are obtained from the frequency of the 0 --> 2 vibrational transition. A comparison with already published data for free and physisorbed oxygen is given. We find that chemisorption strongly reduces the dissociation energy and that the anharmonicity is larger than in the case of physisorption.

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页码：L904 / L908

页数：5

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