Albrecht, Florian and Fatayer, Shadi and Pozo, Iago and Tavernelli, Ivano and Repp, Jascha and Pena, Diego and Gross, Leo (2022) Selectivity in single-molecule reactions by tip-induced redox chemistry. SCIENCE, 377 (6603). pp. 298-301. ISSN 0036-8075, 1095-9203
Full text not available from this repository. (Request a copy)Abstract
Controlling selectivity of reactions is an ongoing quest in chemistry. In this work, we demonstrate reversible and selective bond formation and dissociation promoted by tip-induced reduction-oxidation reactions on a surface. Molecular rearrangements leading to different constitutional isomers are selected by the polarity and magnitude of applied voltage pulses from the tip of a combined scanning tunneling and atomic force microscope. Characterization of voltage dependence of the reactions and determination of reaction rates demonstrate selectivity in constitutional isomerization reactions and provide insight into the underlying mechanisms. With support of density functional theory calculations, we find that the energy landscape of the isomers in different charge states is important to rationalize the selectivity. Tip-induced selective single-molecule reactions increase our understanding of redox chemistry and could lead to novel molecular machines.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTROSTATIC CATALYSIS; CHEMICAL-REACTION; TAUTOMERIZATION; DISSOCIATION; MOTION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Jascha Repp |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Feb 2024 10:55 |
| Last Modified: | 01 Feb 2024 10:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58367 |
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