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Title:Molecule-Driven Substrate Reconstruction in the Two-Dimensional Self-Organization of Fe-Phthalocyanines on Au(110)
Authors:ID Fortuna, Sara, CNR-IOM DEMOCRITOS, Theory@Elettra group, S.S. 14, km 163.5, I-34149 Trieste, Italy (Author)
ID Gargiani, Pierluigi, Physics Department, Sapienza University of Rome, Piazzale A. Moro 5, I-00185 Roma, Italy (Author)
ID Betti, Maria Grazia, Physics Department, Sapienza University of Rome, Piazzale A. Moro 5, I-00185 Roma, Italy (Author)
ID Mariani, Carlo, Physics Department, Sapienza University of Rome, Piazzale A. Moro 5, I-00185 Roma, Italy (Author)
ID Calzolari, Arrigo, CNR-NANO, Institute of Nanoscience, S3 Center, I-41125 Modena, Italy (Author)
ID Modesti, Silvio, CNR-IOM TASC, S.S. 14, km 163.5, I-34149 Trieste, Italy (Author)
ID Fabris, Stefano, CNR-IOM DEMOCRITOS, Theory@Elettra group, S.S. 14, km 163.5, I-34149 Trieste, Italy (Author)
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Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:The structural patterns formed by molecular self-assembly at surfaces are usually controlled by the relative strengths of the intermolecular and molecule–substrate interactions. An additional steering effect is present when the substrate can easily reconstruct upon molecular adsorption, which therefore drives a self-templating effect on the metal support. This is here demonstrated for the model case of Fe-phthalocyanine molecules adsorbed on the Au(110) surface. Scanning tunneling microscopy shows that molecular adsorption promotes a local (1 × 5) surface reconstruction, which drives the assembly of molecular chains along the [11̅0] direction. The order and periodicity of the molecular assemblies are determined with low energy electron diffraction patterns. Density functional theory calculations reveal the energetic origins of the molecule-driven substrate reconstruction. Since the function of molecular overlayers at surfaces is strongly correlated to their structure, these results have implications in the design of new metal/molecular interfaces.
Keywords:self-assembly, phthalocyanine, Au(110), DFT, density functional theory, simulation, surface, recontruction
Year of publishing:2012
Number of pages:6251-6258
Numbering:116, 10
PID:20.500.12556/RUNG-2663 New window
COBISS.SI-ID:4534267 New window
DOI:10.1021/jp211036m New window
NUK URN:URN:SI:UNG:REP:FF3IHYZS
Publication date in RUNG:11.10.2016
Views:4747
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Record is a part of a journal

Title:Journal of Physical Chemistry C
Publisher:American Chemical Society
Year of publishing:2012
ISSN:1932-7447

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