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Bridge-bonded methylthiolate on Au(111) observed with the scanning tunneling microscope

Scott Holmes, Jianzhi Gao, Lin Tang, Fangsen Li, Richard Palmer Orcid Logo, Quanmin Guo

Physical Chemistry Chemical Physics, Volume: 20, Issue: 29, Pages: 19486 - 19491

Swansea University Author: Richard Palmer Orcid Logo

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DOI (Published version): 10.1039/C8CP03684E

Abstract

We report the discovery of bridge-bonded methylthiolate, SCH3, along the step edges of the Au(111) surface. Real-space imaging with a scanning tunnelling microscope reveals the presence of bridge-bonded SCH3 along both the [1[1 with combining macron]0] and the [11[2 with combining macron]] oriented...

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Published in: Physical Chemistry Chemical Physics
ISSN: 1463-9076 1463-9084
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa41119
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Abstract: We report the discovery of bridge-bonded methylthiolate, SCH3, along the step edges of the Au(111) surface. Real-space imaging with a scanning tunnelling microscope reveals the presence of bridge-bonded SCH3 along both the [1[1 with combining macron]0] and the [11[2 with combining macron]] oriented step edges. The nearest neighbour distances of SCH3 along these steps are 2a and Image ID:c8cp03684e-t1.gif, respectively. The Au(111) terrace is covered with the usual CH3SAuSCH3 staples. The bridge-bonded alkanethiolate is expected to play a rather significant role in the formation of thiol-passivated Au nanoclusters because of the high fraction of atoms in similar low-coordination sites.
College: College of Engineering
Issue: 29
Start Page: 19486
End Page: 19491