Efficient Bottom‐Up Preparation of Graphene Nanoribbons by Mild Suzuki–Miyaura Polymerization of Simple Triaryl Monomers |
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| Authors: | Dr Gang Li Ki‐Young Yoon Xinjue Zhong Prof Dr Xiaoyang Zhu Prof Dr Guangbin Dong |
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| Institution: | 1. Department of Chemistry, University of Texas at Austin, Austin, TX, USA;2. Department of Chemistry, Columbia University, New York, NY, USA |
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| Abstract: | Herein an efficient bottom‐up solution‐phase synthesis of N=9 armchair graphene nanoribbons (GNRs) is described. Catalyzed by Pd(PtBu3)2, Suzuki–Miyaura polymerization of a simple and readily available triaryl monomer provides a novel GNR precursor with a high molecular weight and excellent solubility. Upon cyclodehydrogenation, the resulting GNR exhibits semiconducting properties with an approximately 1.1 eV band gap (LUMO: ?3.52 eV; HOMO: ?4.66 eV) as characterized by UV/Vis‐NIR spectroscopy and cyclic voltammetry. |
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| Keywords: | conjugated polymer graphene nanoribbon nanographene palladium catalysis Suzuki– Miyaura polymerization |
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