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Sarkar S, Au-Yeung KH, Kühne T, Waentig A, Ryndyk DA, Heine T, Cuniberti G, Feng X, Moresco F. Adsorption and reversible conformational change of a thiophene based molecule on Au(111). Sci Rep 2023; 13:10627. [PMID: 37391525 DOI: 10.1038/s41598-023-37661-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 06/25/2023] [Indexed: 07/02/2023] Open
Abstract
We present a low temperature scanning tunneling microscope investigation of a prochiral thiophene-based molecule that self-assembles forming islands with different domains on the Au(111) surface. In the domains, two different conformations of the single molecule are observed, depending on a slight rotation of two adjacent bromothiophene groups. Using voltage pulses from the tip, single molecules can be switched between the two conformations. The electronic states have been measured with scanning tunneling spectroscopy, showing that the electronic resonances are mainly localized at the same positions in both conformations. Density-functional theory calculations support the experimental results. Furthermore, we observe that on Ag(111), only one configuration is present and therefore the switching effect is suppressed.
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Affiliation(s)
- Suchetana Sarkar
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
| | - Kwan Ho Au-Yeung
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
| | - Tim Kühne
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
| | - Albrecht Waentig
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
- Chair of Molecular Functional Materials and Faculty of Chemistry and Food Chemistry, TU Dresden, 01062, Dresden, Germany
| | - Dmitry A Ryndyk
- Theoretical Chemistry, TU Dresden, 01062, Dresden, Germany
- Institute for Materials Science, TU Dresden, 01062, Dresden, Germany
| | - Thomas Heine
- Theoretical Chemistry, TU Dresden, 01062, Dresden, Germany
| | | | - Xinliang Feng
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany
- Chair of Molecular Functional Materials and Faculty of Chemistry and Food Chemistry, TU Dresden, 01062, Dresden, Germany
| | - Francesca Moresco
- Center for Advancing Electronics Dresden, TU Dresden, 01062, Dresden, Germany.
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Temprano I, Thomas G, Haq S, Dyer MS, Latter EG, Darling GR, Uvdal P, Raval R. 1D self-assembly of chemisorbed thymine on Cu(110) driven by dispersion forces. J Chem Phys 2015; 142:101916. [DOI: 10.1063/1.4907721] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- I. Temprano
- Surface Science Research Centre and the Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - G. Thomas
- Surface Science Research Centre and the Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - S. Haq
- Surface Science Research Centre and the Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - M. S. Dyer
- Surface Science Research Centre and the Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - E. G. Latter
- Surface Science Research Centre and the Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - G. R. Darling
- Surface Science Research Centre and the Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - P. Uvdal
- Chemical Physics, Department of Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
- MAX-IV Laboratory, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden
| | - R. Raval
- Surface Science Research Centre and the Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
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