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We present an interplay of high-resolution scanning tunneling microscopy imaging and the corresponding theoretical calculations based on elastic scattering quantum chemistry techniques of the adsorption of a gold-functionalized rosette assembly and its building blocks on a Au(111) surface with the goal of exploring how to fabricate functional 3-D molecular nanostructures on surfaces. The supramolecular rosette assembly stabilized by multiple hydrogen bonds has been sublimed onto the Au(111) surface under ultra-high vacuum conditions; the resulting surface nanostructures are distinctly different from those formed by the individual molecular building blocks of the rosette assembly, suggesting that the assembly itself can be transferred intact to the surface by in situ thermal sublimation. This unanticipated result will open up new perspectives for growth of complex 3-D supramolecular nanostructures at the vacuum-solid interface.


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Exploring the Transferability of Large Supramolecular Assemblies to the Vacuum-Solid Interface

Show Author's information Wei Xu1,§Mingdong Dong1Henkjan Gersen1,#Socorro Vázquez-Campos2Xavier Bouju3Erik Lægsgaard1Ivan Stensgaard1Mercedes Crego-Calama2,David N Reinhoudt2Trolle R Linderoth1( )Flemming Besenbacher1( )
Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and AstronomyAarhus UniversityNy Munkegade8000Aarhus C, Denmark
Laboratory of Supramolecular Chemistry and Technology, Materials Science and Technology of Polymers, MESA+ Institute for NanotechnologyUniversity of Twente, P.O. Box217, 7500AE Enschede, The Netherlands
Nanoscience groupCEMES-CNRS, 29 rue Jeanne Marvig31055Toulouse, France

§ Current address: Departments of Chemistry and Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

# Current address: Nanophysics and Soft Matter Group, Department of Physics, University of Bristol, Tyndall Avenue, BS8 1TL Bristol, UK

Current address: Holst Center (IMEC-NL), High Tech Campus 48, 5656 AE Eindhoven, The Nethe lands

Abstract

We present an interplay of high-resolution scanning tunneling microscopy imaging and the corresponding theoretical calculations based on elastic scattering quantum chemistry techniques of the adsorption of a gold-functionalized rosette assembly and its building blocks on a Au(111) surface with the goal of exploring how to fabricate functional 3-D molecular nanostructures on surfaces. The supramolecular rosette assembly stabilized by multiple hydrogen bonds has been sublimed onto the Au(111) surface under ultra-high vacuum conditions; the resulting surface nanostructures are distinctly different from those formed by the individual molecular building blocks of the rosette assembly, suggesting that the assembly itself can be transferred intact to the surface by in situ thermal sublimation. This unanticipated result will open up new perspectives for growth of complex 3-D supramolecular nanostructures at the vacuum-solid interface.

Keywords: Self-assembly, hydrogen bonding, scanning tunneling microscopy, supramolecular assembly, surface nanostructures

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Publication history

Received: 01 April 2009
Revised: 01 May 2009
Accepted: 01 May 2009
Published: 01 July 2009
Issue date: July 2009

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© Tsinghua University Press and Springer-Verlag 2009

Acknowledgements

Acknowledgements

We acknowledge financial support from the Danish Ministry for Science, Technology and Innovation through the iNANO Center, the Danish Research Councils, a Marie Curie-Intra-European Fellowship for H. G. (MEIF-CT-2004-010038), the SONS Eurocores program FUN-SMARTS, and the NMP Frontiers European project (NMP4-CT-2004-500328).

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