On‐Surface Synthesis of Porous Carbon Nanoribbons on Silver: Reaction Kinetics and the Influence of the Surface Structure
| Autor: | M. Haller, Maximilian Ammon, Shadi Sorayya, Sabine Maier |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
scanning probe microscopy surface chemistry 02 engineering and technology 010402 general chemistry 01 natural sciences Article Coupling reaction law.invention Chemical kinetics Scanning probe microscopy on-surface reactions law Molecule Molecular self-assembly ddc:530 on-surface synthesis Physical and Theoretical Chemistry chemistry.chemical_classification technology industry and agriculture Articles molecular self-assembly Polymer Naturwissenschaftliche Fakultät 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences Chemical engineering Polymerization chemistry scanning tunneling microscopy Ullmann-type reaction Scanning tunneling microscope 0210 nano-technology |
| Zdroj: | Chemphyschem ChemPhysChem |
| ISSN: | 1439-7641 1439-4235 |
| Popis: | We report on the influence of the surface structure and the reaction kinetics in the bottom-up fabrication of porous nanoribbons on silver surfaces using low-temperature scanning tunneling microscopy. The porous carbon nanoribbons are fabricated by the polymerization of 1,3,5-tris(3-bromophenyl) benzene directly on the Ag surface using an Ullmann-type reaction in combination with dehydrogenative coupling reactions. We demonstrate the successful on-surface synthesis of porous nanoribbons on Ag(111) and Ag(100) even though the self-assemblies of the intermediate organometallic structures and covalently-linked polymer chains are different on both surfaces. Furthermore, we present the formation of isolated porous nanoribbons by kinetic control. Our results give valuable insights into the role of substrate-induced templating effects and the reaction kinetics in the on-surface synthesis of conformationally flexible molecules. |
| Databáze: | OpenAIRE |
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