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Updated: Sep 18, 2025

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
A diastereoselective Scholl reaction: point-to-helical chirality transfer in molecular nanographenes
Sergio Marcos López1, Manuel Buendia1, Israel Fernández1
1Departamento de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense Avd. Complutense, S/N Madrid 28040 Spain israel@quim.ucm.es salvatorefilippone@ucm.es nazmar@ucm.es.
Abstract:
Stereoselective control of molecular nanographene helicity has been achieved by a point-to-helical chirality transfer during the Scholl graphitization reaction to obtain compound 4. Density functional theory calculations indicate that the complete diastereoselective process takes place mainly under kinetic control. Circular dichroism and circularly polarised luminescence studies of both enantiomers show the expected mirror images, with a dissymmetry factor (g lum) value of 1.0 × 10-3 determined at 470 nm and a circularly polarized luminescence brightness (B CPL) of 4.9 M-1 cm-1.
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