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doi:10.22028/D291-39069
Titel: | Unveiling Adatoms in On-Surface Reactions: Combining Scanning Probe Microscopy with van't Hoff Plots |
VerfasserIn: | Moreno-López, Juan Carlos Pérez Paz, Alejandro Gottardi, Stefano Solianyk, Leonid Li, Jun Monjas, Leticia Hirsch, Anna K. H. Mowbray, Duncan John Stöhr, Meike |
Sprache: | Englisch |
Titel: | The Journal of Physical Chemistry |
Bandnummer: | 125 |
Heft: | 18 |
Seiten: | 9847-9854 |
Verlag/Plattform: | American Chemical Society |
Erscheinungsjahr: | 2021 |
DDC-Sachgruppe: | 500 Naturwissenschaften |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Scanning probe microscopy has become an essential tool to not only study pristine surfaces but also onsurface reactions and molecular self-assembly. Nonetheless, due to inherent limitations, some atoms or (parts of) molecules are either not imaged or cannot be unambiguously identified. Herein, we discuss the arrangement of two different nonplanar molecular assemblies of para-hexaphenyl-dicarbonitrile (Ph6(CN)2) on Au(111) based on a combined theoretical and experimental approach. For deposition of Ph6(CN)2 on Au(111) kept at room temperature, a rhombic nanoporous network stabilized by a combination of hydrogen bonding and antiparallel dipolar coupling is formed. Annealing at 575 K resulted in an irreversible thermal transformation into a hexagonal nanoporous network stabilized by native gold adatoms. However, the Au adatoms could neither be unequivocally identified by scanning tunneling microscopy nor by noncontact atomic force microscopy. By combining van’t Hoff plots derived from our scanning probe images with our density functional theory calculations, we were able to confirm the presence of the elusive Au adatoms in the hexagonal molecular network. |
DOI der Erstveröffentlichung: | 10.1021/acs.jpcc.1c03134 |
URL der Erstveröffentlichung: | https://pubs.acs.org/doi/10.1021/acs.jpcc.1c03134 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-390699 hdl:20.500.11880/35232 http://dx.doi.org/10.22028/D291-39069 |
ISSN: | 1932-7447 |
Datum des Eintrags: | 16-Feb-2023 |
Bezeichnung des in Beziehung stehenden Objekts: | Supporting Information |
In Beziehung stehendes Objekt: | https://pubs.acs.org/doi/suppl/10.1021/acs.jpcc.1c03134/suppl_file/jp1c03134_si_001.pdf https://pubs.acs.org/doi/suppl/10.1021/acs.jpcc.1c03134/suppl_file/jp1c03134_si_002.avi https://pubs.acs.org/doi/suppl/10.1021/acs.jpcc.1c03134/suppl_file/jp1c03134_si_003.mpg |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Pharmazie |
Professur: | NT - Prof. Dr. Anna Hirsch |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
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