ALKALI-METAL-INDUCED BOND LENGTH CONTRACTION OF ACETONITRILE (CH3CN) ON AU(100)

被引：11

作者：

NEUMANN, A ^{[1
]}

RABUS, H ^{[1
]}

ARVANITIS, D ^{[1
]}

SOLOMUN, T ^{[1
]}

CHRISTMANN, K ^{[1
]}

BABERSCHKE, K ^{[1
]}

机构：

[1] FREE UNIV BERLIN,INST EXPTL PHYS,W-1000 BERLIN 33,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 201卷 / 1-4期

关键词：

D O I：

10.1016/0009-2614(93)85042-M

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 acetonitrile (CH3CN) with the clean and the alkali metal (Na, K) promoted Au(100)-(5 X 20) surface was studied by near edge X-ray absorption fine structure (NEXAFS). On clean Au(100), CH3CN is essentially physisorbed in an almost flat-lying configuration with an angle of 81-degrees +/- 10-degrees between the C-C-N axis and the surface normal. The molecular interaction with coadsorbed alkali metal atoms reduces the C=N bond length by 0.04 angstrom (Na) and 0.07 angstrom (K), respectively. This is the first report of a contraction of an intramolecular bond of an adsorbed molecule in the presence of coadsorbed alkali metal.

引用

页码：108 / 114

页数：7

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