%0 Journal Article
%A Fernández García, Jesús Manuel
%A Evans, Paul
%A Medina Rivero, Samara
%A Fernández López, Israel
%A García Fresnadillo, David
%A Perles Hernáez, Josefina
%A Casado, Juan
%A Martín León, Nazario
%T π-Extended Corannulene-Based Nanographenes: Selective Formation of Negative Curvature
%D 2018
%@ 0002-7863
%U https://hdl.handle.net/20.500.14352/93146
%X 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 sevenmembered 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.
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