Building a 22-ring nanographene by combining in-solution and on-surface syntheses

Rafal Zuzak; Jesus Castro-Esteban; Pedro Brandimarte; Mads Engelund; Agustín Cobas; Piotr Piątkowski; Marek Kolmer; Dolores Pérez; Enrique Guitián; Marek Szymonski; Daniel Sánchez-Portal; Szymon Godlewski; Diego Peña

doi:10.1039/C8CC05353G

Building a 22-ring nanographene by combining in-solution and on-surface syntheses†

Rafal Zuzak,‡^a Jesus Castro-Esteban,‡^b Pedro Brandimarte,

^c Mads Engelund,^d Agustín Cobas,^b Piotr Piątkowski,^a Marek Kolmer,^a Dolores Pérez,

^b Enrique Guitián,

^b Marek Szymonski,^a Daniel Sánchez-Portal,^ce Szymon Godlewski*^a and Diego Peña

*^b

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* Corresponding authors

^a Centre for Nanometer-Scale Science and Advanced Materials NANOSAM, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, Kraków 30-348, Poland
E-mail: szymon.godlewski@uj.edu.pl

^b Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
E-mail: diego.pena@usc.es

^c Donostia International Physics Center, Donostia-San Sebastián 20018, Spain

^d Espeem S.A.R.L. (espeem.com), 9 rue de Haut-Fournaux, Esch-sur-Alzette L-4365, Luxembourg

^e Centro de Física de Materiales (CSIC-UPV/EHU), Donostia-San Sebastián 20018, Spain

Abstract

A nanographene formed by the fusion of 22 benzene rings has been prepared by combining an in-solution Pd-catalyzed cycloaddition reaction and on-surface Au-promoted cyclodehydrogenation. The structure and electronic properties of the resulting three-fold symmetric C₆₆H₂₄ molecule have been characterized by scanning probe microscopy with atomic resolution and corroborated by theoretical modelling.

This article is part of the themed collection: Scanning probe frontiers in molecular 2D-architecture world

Chemical Communications

Building a 22-ring nanographene by combining in-solution and on-surface syntheses†

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Building a 22-ring nanographene by combining in-solution and on-surface syntheses

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