Adsorption of thiolates to singly coordinated sites on Au(111) evidenced by photoelectron diffraction

被引：197

作者：

Kondoh, H

Iwasaki, M

Shimada, T

Amemiya, K

Yokoyama, T

Ohta, T

Shimomura, M

Kono, S

机构：

[1] Univ Tokyo, Dept Chem, Grad Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.90.066102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The adsorption structure of methylthiolate (CH3S) adsorbed on Au(111), a long-standing controversial issue, has been unambiguously determined by scanned-energy and scanned-angle S 2p photoelectron diffraction. The methylthiolate molecules are found to occupy atop sites with a S-Au distance of 2.42 +/- 0.03 Angstrom. The angular distribution of the S 2p photoelectrons due to forward scattering reveals that the S-C bond is inclined by approximately 50degrees from the surface normal towards both the [(2) over bar 11] and [(1) over bar2 (1) over bar] (nearest-neighbor thiolate) directions.

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页数：4

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