Details

Autor(en) / Beteiligte

• Fernández-García, Jesús M
• Evans, Paul J
• Medina Rivero, Samara
• Fernández, Israel
• García-Fresnadillo, David
• Perles, Josefina
• Casado, Juan
• Martín, Nazario

Titel

π‑Extended Corannulene-Based Nanographenes: Selective Formation of Negative Curvature

Ist Teil von

• Journal of the American Chemical Society, 2018-12, Vol.140 (49), p.17188-17196

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A geometrically selective bottom-up synthesis of curved nanographenes is described. The synthetic methodology used involves the extension of the π-system of positively curved corannulene by a [4+2] cycloaddition reaction followed by cyclodehydrogenation (Scholl oxidation). By selecting the conditions for the Scholl oxidation, the formation of a seven-membered ring that also confers negative curvature to the resulting nanographene can be activated, offering two topologically distinct, curved nanographenes from a common precursor. Additionally, the structure–property relationship in these new nanographenes is explored via theoretical, electrochemical, photophysical, Raman, and X-ray crystallographic studies.