Planar and Curved π-Extended Porphyrins by On-Surface Cyclodehydrogenation
Miloš Baljozović, Joffrey Pijeat, Stéphane Campidelli, Karl-Heinz Ernst · 2024
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Description
Miloš Baljozović, Joffrey Pijeat, Stéphane Campidelli, and Karl-Heinz Ernst build extra-large porphyrin molecules directly on a gold surface. Porphyrins are ring-shaped molecules whose traits can be tuned by swapping the metal at their center or changing their edges. Growing versions with bare anthracene arms had eluded chemists using normal wet methods.
Working in a vacuum, the team placed zinc porphyrins carrying two or four anthracene arms on a gold(111) surface. As they raised the heat step by step, hydrogen atoms left the arms and the arms fused to the ring. The products were flat, extended porphyrins. At high coverage, some molecules bent into a bowl shape, and gold atoms replaced zinc at some centers. The authors say such routes could serve future work in catalysis, electronics, and spintronics.
Catalog record
| CREATOR | Miloš Baljozović, Joffrey Pijeat, Stéphane Campidelli, Karl-Heinz Ernst |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 29 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |