Making and breaking of chemical bonds in single nanoconfined molecules
2022-09-09 | journal article; research paper. A publication with affiliation to the University of Göttingen.
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Making and breaking of chemical bonds in single nanoconfined molecules
Bunjes, O.; Hedman, D.; Rittmeier, A.; Paul, L. A; Siewert, I.; Ding, F. & Wenderoth, M. (2022)
Science advances, 8(36) pp. eabq7776. DOI: https://doi.org/10.1126/sciadv.abq7776
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Details
- Authors
- Bunjes, Ole; Hedman, Daniel; Rittmeier, Alexandra; Paul, Lucas A; Siewert, Inke; Ding, Feng; Wenderoth, Martin
- Abstract
- Nanoconfinement of catalytically active molecules is a powerful strategy to control their chemical activity; however, the atomic-scale mechanisms are challenging to identify. In the present study, the site-specific reactivity of a model rhenium catalyst is studied on the subnanometer scale for complexes confined within quasi-one-dimensional molecular chains on the Ag(001) surface by scanning tunneling microscopy. Injection of tunneling electrons causes ligand dissociation in single molecules. Unexpectedly, while half of the complexes show only the dissociation, the confined molecules show also the reverse reaction. On the basis of density functional theory calculations, this drastic difference can be attributed to the limited space in confinement. That is, the split-off ligand adsorbs closer to the molecule and the dissociation causes less structural disruption. Both of these facilitate the reverse reaction. We demonstrate formation and disruption of single chemical bonds of nanoconfined molecules with potential application in molecular data storage.
- Issue Date
- 9-September-2022
- Journal
- Science advances
- Project
- SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen
SFB 1073 | Topical Area C: Photonen- und elektronengetriebene Reaktionen
SFB 1073 | Topical Area C | C04 Untersuchung und Kontrolle photochemischer Reaktionen durch lokale optische Anregung im Rastertunnelmikroskop
SFB 1073 | Topical Area C | C07 Kontrolle Reaktivität hydridischer Photokatalysatoren - Organization
- IV. Physikalisches Institut ; Institut für Anorganische Chemie
- ISSN
- 2375-2548
- eISSN
- 2375-2548
- Language
- English