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Issue 17, 2016
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Two-dimensional self-assembly of benzotriazole on an inert substrate

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Abstract

The ultra-high vacuum (UHV) room temperature adsorption of benzotriazole (BTAH), a well-known corrosion inhibitor for copper, has been investigated on the pristine Au(111) surface using a combination of surface sensitive techniques. The dimensionality of the molecule is reduced from the 3D crystal structure to a 2-dimensional surface confinement, which induces the formation of hydrogen bonded 1-dimensional molecular chains consisting of alternating pro-S and pro-R enantiomers mainly. The 0-dimensional system is characteristic of gas-phase BTAH, which undergoes a tautomeric equilibrium, with consequences for the resulting adsorbed species. The balance between hydrogen bonding, inter-chain van der Waals interactions and surface–molecule interactions, and the correlation with the dimensionality of the system, are discussed in light of the experimental results and a computational description of the observed features.

Graphical abstract: Two-dimensional self-assembly of benzotriazole on an inert substrate

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Publication details

The article was received on 29 Jan 2016, accepted on 24 Mar 2016 and first published on 25 Mar 2016


Article type: Paper
DOI: 10.1039/C6NR00821F
Citation: Nanoscale, 2016,8, 9167-9177
  • Open access: Creative Commons BY license
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    Two-dimensional self-assembly of benzotriazole on an inert substrate

    F. Grillo, J. A. Garrido Torres, M.-J. Treanor, C. R. Larrea, J. P. Götze, P. Lacovig, H. A. Früchtl, R. Schaub and N. V. Richardson, Nanoscale, 2016, 8, 9167
    DOI: 10.1039/C6NR00821F

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