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True nature of an archetypal self-assembly system: Mobile Au-thiolate species on Au(111)
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Yu, Miao, Bovet, N., Satterley, Christopher J., Bengio, S., Lovelock, Kevin R. J., Milligan, P. K., Jones, Robert G., Woodruff, D. P. and Dhanak, V. (2006) True nature of an archetypal self-assembly system: Mobile Au-thiolate species on Au(111). PHYSICAL REVIEW LETTERS, 97 (16). -. doi:10.1103/PhysRevLett.97.166102 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.97.166102
Abstract
Alkanethiol self-assembled monolayer (SAM) phases on Au(111) have been assumed to involve direct S head group bonding to the substrate. Using x-ray standing wave experiments, we show the thiolate actually bonds to gold adatoms; self-organization in these archetypal SAM systems must therefore be governed by the movement of these Au-S-R moieties on the surface between two distinct local hollow sites on the surface. The results of recent ab initio total energy calculations provide strong support for this description, and a rationale for the implied significant molecular mobility in these systems.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW LETTERS | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 20 October 2006 | ||||
Dates: |
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Volume: | 97 | ||||
Number: | 16 | ||||
Number of Pages: | 4 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevLett.97.166102 | ||||
Publication Status: | Published |
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