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Local methylthiolate adsorption geometry on Au(111) from photoemission core-level shifts

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Chaudhuri, Anindita, Lerotholi, T. J., Jackson, D. C., Woodruff, D. P. and Dhanak, Vin. (2009) Local methylthiolate adsorption geometry on Au(111) from photoemission core-level shifts. Physical Review Letters, Vol.102 (No.12). p. 6101. ISSN 0031-9007

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.102.126101

Abstract

The local adsorption structure of methylthiolate in the ordered Au(111)-(√3×√3)R30° phase has been investigated using core-level-shift measurements of the surface and bulk components of the Au 4f7/2 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.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Adsorption -- Research, Chemisorption -- Research, Photoemission -- Research, Thiols -- Research, Gold -- Research
Journal or Publication Title:	Physical Review Letters
Publisher:	American Physical Society
ISSN:	0031-9007
Date:	26 March 2009
Volume:	Vol.102
Number:	No.12
Page Range:	p. 6101
Identification Number:	10.1103/PhysRevLett.102.126101
Status:	Peer Reviewed
Access rights to Published version:	Open Access
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URI:	http://wrap.warwick.ac.uk/id/eprint/2696