Infrared reflection absorption spectroscopic study on the adsorption structures of ethylene on Ag(110) and atomic oxygen pre-covered Ag(110) surfaces

被引：8

作者：

Akita, M ^{[1
]}

Osaka, N ^{[1
]}

Hiramoto, S ^{[1
]}

Itoh, K ^{[1
]}

机构：

[1] Waseda Univ, Sch Sci & Engn, Dept Chem, Shinjuku Ku, Tokyo 1698555, Japan

来源：

SURFACE SCIENCE | 1999年 / 427-28卷

关键词：

adsorption structures; Ag(110); ethylene; infrared reflection absorption spectroscopy; p(n x 1)O=Ag(110) (n=2; 3; 4; and; 6);

D O I：

10.1016/S0039-6028(99)00305-2

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：

Infrared reflection absorption spectra in the CW, out-of-plane wagging (omega(CH(2))) vibration region were measured for ethylene (C(2)H(4)) adsorbed on Ag(110) as well as on the oxygen-induced p(n x 1) reconstructed surfaces of Ag(110) (n = 2, 3, 4 and 6) at 80 K. C(2)H(4) on Ag(110) gives a main peak at 955 cm(-1), while on p(2 x 1)O-Ag(110) it exhibits a broad features of at least four components (997, 984, 970 and 954 cm(-1)) at saturation coverage. C(2)H(4) on p(n x 1)O-Ag(110) (n = 6, 4, 3) gives rise to a 972-976 cm(-1) band at low exposures, shifting to 966-970 cm(-1) at saturation coverage. The spectral changes are interpreted by assuming a pair of adsorption sites on both sides of the added Ag-O rows of the reconstructed surfaces. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：374 / 380

页数：7

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