Coverage-dependent formation of chiral ethylthiolate-Au complexes on Au(111)
We studied the coverage-dependent self-assembly of the flat-lying phase of ethylthiolate on Au(111). At low coverage, we observed the formation of short stripes of chiral Au-(SC(2)H(5))(2) complexes that arrange in a disordered phase. The latter grow partly at the expense of the native Au(111) surfa...
| Veröffentlicht in: | Langmuir : the ACS journal of surfaces and colloids. - 1992. - 27(2011), 2 vom: 18. Jan., Seite 627-9 |
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| Weitere Verfasser: | , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2011
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| Zugriff auf das übergeordnete Werk: | Langmuir : the ACS journal of surfaces and colloids |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Organometallic Compounds Sulfhydryl Compounds Gold 7440-57-5 |
| Zusammenfassung: | We studied the coverage-dependent self-assembly of the flat-lying phase of ethylthiolate on Au(111). At low coverage, we observed the formation of short stripes of chiral Au-(SC(2)H(5))(2) complexes that arrange in a disordered phase. The latter grow partly at the expense of the native Au(111) surface reconstruction, which is fully lifted for a coverage of ∼0.60 ML. We found that the lift of the reconstruction and evaporation from step edges are competing adatom sources. Close to saturation coverage (0.70 to 0.75 ML), large, well-ordered domains with a (8 × √3)rectangular superstructure formed. Alternation of chirality was found in adjacent stripes as already reported for other short alkanethiolates. We suggest that, because of a simple geometrical consideration, the chirality should, on the contrary, be preserved in the stripe phase of longer alkanethiolates |
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| Beschreibung: | Date Completed 05.05.2011 Date Revised 11.01.2011 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1520-5827 |
| DOI: | 10.1021/la103641w |