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

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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.

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

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Publication details

The article was received on 11 Jun 2018, accepted on 03 Jul 2018 and first published on 03 Jul 2018


Article type: Paper
DOI: 10.1039/C8CP03684E
Citation: Phys. Chem. Chem. Phys., 2018, Advance Article
  • Open access: Creative Commons BY license
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    Bridge-bonded methylthiolate on Au(111) observed with the scanning tunneling microscope

    S. Holmes, J. Gao, L. Tang, F. Li, R. E. Palmer and Q. Guo, Phys. Chem. Chem. Phys., 2018, Advance Article , DOI: 10.1039/C8CP03684E

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