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Structural investigation of Au(111)/butylthiolate adsorption phases
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Chaudhuri, Anindita, Jackson, D. C., Lerotholi, T. J., Jones, Robert G., Lee, Tien-Lin, Detlefs, B. and Woodruff, D. P. (2010) Structural investigation of Au(111)/butylthiolate adsorption phases. Physical Chemistry Chemical Physics, Vol.12 (No.13). pp. 3229-3238. doi:10.1039/b921281g ISSN 1463-9076.
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Official URL: http://dx.doi.org/10.1039/b921281g
Abstract
The structures of the high-coverage ('standing-up') and low-coverage ('ying-down') phases of butylthiolate on Au(111) have been investigated by a range of experimental methods. Normal incidence X-ray standing waves, photoelectron diffraction and near-edge X-ray absorption. ne structure results all identify the local S headgroup site as atop a surface Au atom in a bulk continuation site for both high-and low-coverage phases. Low energy electron diffraction shows the low-coverage phase to have a (12 x root 3) rect. surface mesh with glide-line symmetry (pmg space group), the long dimension of this mesh being approximately four times the length of the butylthiolate molecule. A structural model is proposed for this phase based on two different enantiomers of an Au-adatom-dithiolate species that is consistent with these results and with recent finding for propylthiolate on this surface using low-temperature scanning tunnelling microscopy (O. Voznyy, J. J. Dubowski, J. T. Yates Jr. and P. Maksymovych, J. Am Chem. Soc., 2009, 131, 12989).
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry Q Science > QC Physics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Gold -- Structure, Adsorption, Electrons -- Diffraction, Self-assembly (Chemistry) | ||||
| Journal or Publication Title: | Physical Chemistry Chemical Physics | ||||
| Publisher: | Royal Society of Chemistry | ||||
| ISSN: | 1463-9076 | ||||
| Official Date: | 2010 | ||||
| Dates: |
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| Volume: | Vol.12 | ||||
| Number: | No.13 | ||||
| Number of Pages: | 10 | ||||
| Page Range: | pp. 3229-3238 | ||||
| DOI: | 10.1039/b921281g | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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