Manipulating the conformation of single organometallic chains on Au(111)

Saywell, Alexander and Greń, Wojciech and Franc, Grégory and Gourdon, André and Bouju, Xavier and Grill, Leonhard (2013) Manipulating the conformation of single organometallic chains on Au(111). Journal of Physical Chemistry C, 118 (3). pp. 1719-1728. ISSN 1932-7455

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The conformations of organometallic polymers formed via the bottom-up assembly of monomer units on a metal surface are investigated, and the relationship between the adsorption geometry of the individual monomer units, the conformational structure of the chain, and the overall shape of the polymer is explored. Iodine-functionalized monomer units deposited on a Au(111) substrate are found to form linear chain structures in which each monomer is linked to its neighbors via a Au adatom. Lateral manipulation of the linear chains using a scanning tunneling microscope allows the structure of the chain to be converted from a linear to a curved geometry, and it is shown that a transformation of the overall shape of the chain is coupled to a conformational rearrangement of the chain structure as well as a change in the adsorption geometry of the monomer units within the chain. The observed conformational structure of the curved chain is well-ordered and distinct from that of the linear chains. The structures of both the linear and curved chains are investigated by a combination of scanning tunneling microscopy measurements and theoretical calculations.

Item Type: Article
Additional Information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Keywords: Scanning tunneling microscopy, Manipulation, Self-assembly, Metal-organic frameworks, On-surface synthesis, Molecular conformations
Schools/Departments: University of Nottingham UK Campus > Faculty of Science > School of Physics and Astronomy
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Depositing User: Eprints, Support
Date Deposited: 08 Aug 2016 12:29
Last Modified: 26 Sep 2016 15:30

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