Local Methylthiolate Adsorption Geometry on Au(111) from Photoemission Core-Level Shifts

被引：57

作者：

Chaudhuri, A. ^{[1
]}

Lerotholi, T. J. ^{[1
]}

Jackson, D. C. ^{[1
]}

Woodruff, D. P. ^{[1
]}

Dhanak, V. ^{[2
,3
]}

机构：

[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[2] Univ Liverpool, Surface Sci Res Ctr, Warrington WA4 4AD, Cheshire, England

[3] SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 12期

关键词：

SELF-ASSEMBLED MONOLAYERS; ALKANETHIOLS; SURFACES; SITE;

D O I：

10.1103/PhysRevLett.102.126101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The local adsorption structure of methylthiolate in the ordered Au(111)-(root 3 x root 3) R30 degrees phase has been investigated using core-level-shift measurements of the surface and bulk components of the Au 4f(7/2) photoelectron binding energy. The amplitude ratio of the core-level-shift components associated with surface Au atoms that are, and are not, bonded to the thiolate is found to be compatible only with the previously proposed Au-adatom-monothiolate moiety in which the thiolate is bonded atop Au adatoms in hollow sites, and not on an unreconstructed surface, or in Au-adatom-dithiolate species.

引用

页数：4

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