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Science 24 May 1996:
Vol. 272. no. 5265, pp. 1145 - 1148
DOI: 10.1126/science.272.5265.1145
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Reports
The Self-Assembly Mechanism of Alkanethiols on Au(111)
G. E. Poirier
*
and
E. D. Pylant
The self-assembly mechanism of alkanethiol
monolayers on the (111) surface of gold was discovered with the use of
an ultrahigh-vacuum scanning tunneling microscope. Monolayer formation
follows a two-step process that begins with condensation of low-density
crystalline islands, characterized by surface-aligned molecular axes,
from a lower density lattice-gas phase. At saturation coverage of this
phase, the monolayer undergoes a phase transition to a denser phase by
realignment of the molecular axes with the surface normal. These
studies reveal the important role of molecule-substrate and
molecule-molecule interactions in the self-assembly of these
technologically important material systems.
National Institute of Standards and Technology, Gaithersburg, MD
20899, USA.
*
To whom correspondence should be addressed.
Permanent address: Department of Chemistry and Biochemistry,
University of Texas, Austin, TX 78712, USA.
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
- Conductance Switching in Single Molecules Through Conformational Changes.
- Z. J. Donhauser, B. A. Mantooth, K. F. Kelly, L. A. Bumm, J. D. Monnell, J. J. Stapleton, D. W. Price Jr., A. M. Rawlett, D. L. Allara, J. M. Tour, et al. (2001)
Science
292, 2303-2307
| Abstract »
| Full Text »
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- Self-Assembly of a Two-Dimensional Superlattice of Molecularly Linked Metal Clusters.
- R. P. Andres, J. D. Bielefeld, J. I. Henderson, D. B. Janes, V. R. Kolagunta, C. P. Kubiak, W. J. Mahoney, and R. G. Osifchin (1996)
Science
273, 1690-1693
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