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Coverage-controlled polymorphism of H-bonded networks on Au(111)

Schmidt, Nico, Enache, Mihaela, Maggini, Laura, Havenith, Remco W.A., Bonifazi, Davide and Stöhr, Meike 2019. Coverage-controlled polymorphism of H-bonded networks on Au(111). Journal of Physical Chemistry C 123 (12) , pp. 7151-7157. 10.1021/acs.jpcc.8b12260

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We report on the self-assembly of a conformational flexible organic compound on Au(111) using scanning tunneling microscopy and low-energy electron diffraction measurements. We observed different conformers of the compound upon adsorption on the reconstructed Au(111) surface. Increasing the molecular coverage enhanced the lateral pressure, that is, parallel to the surface, favoring a coverage-controlled transition from a supramolecular network displaying only one molecular organization, into a polymorphic array with two coexisting arrangements. Our results give insights into the role of substrate-induced conformational changes on the formation of polymorphic supramolecular networks.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Publisher: American Chemical Society
ISSN: 1932-7447
Date of First Compliant Deposit: 1 April 2019
Date of Acceptance: 4 March 2019
Last Modified: 02 Apr 2019 09:15

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