Fjord-Edge Graphene Nanoribbons with Site-Specific Nitrogen Substitution
| Autor: | Julen Munarriz, Victoria M. Basile, Richard B. Kaner, Yolanda L. Li, Mit Muni, Maria D. Flores, Anastassia N. Alexandrova, Kendall N. Houk, Chih-Te Zee, Sarah H. Tolbert, Janice B. Lin, Yves Rubin |
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| Rok vydání: | 2020 |
| Předmět: |
Models
Molecular Nitrogen Heteroatom Biochemistry Catalysis law.invention symbols.namesake Colloid and Surface Chemistry X-ray photoelectron spectroscopy law Models Spectroscopy Topology (chemistry) Nanotubes Molecular Structure Graphene Chemistry Nanotubes Carbon Molecular General Chemistry Carbon Crystallography Polymerization Chemical Sciences symbols Graphite Raman spectroscopy Graphene nanoribbons |
| Zdroj: | Journal of the American Chemical Society, vol 142, iss 42 |
| Popis: | The synthesis of graphene nanoribbons (GNRs) that contain site-specifically substituted backbone heteroatoms is one of the essential goals that must be achieved in order to control the electronic properties of these next generation organic materials. We have exploited our recently reported solid-state topochemical polymerization/cyclization-aromatization strategy to convert the simple 1,4-bis(3-pyridyl)butadiynes 3a,b into the fjord-edge nitrogen-doped graphene nanoribbon structures 1a,b (fjord-edge N2[8]GNRs). Structural assignments are confirmed by CP/MAS 13C NMR, Raman, and XPS spectroscopy. The fjord-edge N2[8]GNRs 1a,b are promising precursors for the novel backbone nitrogen-substituted N2[8]AGNRs 2a,b. Geometry and band calculations on N2[8]AGNR 2c indicate that this class of nanoribbons should have unusual bonding topology and metallicity. |
| Databáze: | OpenAIRE |
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