title: Efficient Bottom-Up Preparation of Graphene Nanoribbons by Mild Suzuki-Miyaura Polymerization of Simple Triaryl Monomers.
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.
authors.affiliation: Department of Chemistry, University of Texas at Austin, 100 East 24th Street, Austin, TX, 78712, USA.
authors.forename: Gang
authors.initials: G
authors.lastname: Li
authors.affiliation: Department of Chemistry, University of Texas at Austin, 100 East 24th Street, Austin, TX, 78712, USA.
authors.forename: Ki-Young
authors.initials: KY
authors.lastname: Yoon
authors.affiliation: Department of Chemistry, Columbia University, 3000 Broadway, New York, NY, 10027, USA.
authors.forename: Xinjue
authors.initials: X
authors.lastname: Zhong
authors.affiliation: Department of Chemistry, Columbia University, 3000 Broadway, New York, NY, 10027, USA. xyzhu@columbia.edu.
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Department of Chemistry, University of Texas at Austin, 100 East 24th Street, Austin, TX, 78712, USA. gbdong@cm.utexas.edu.
authors.forename: Guangbin
authors.initials: G
authors.lastname: Dong
mesh_terms: D001555:Benzene Derivatives / Q000737:chemistry*; D002384:Catalysis; D056831:Coordination Complexes / Q000737:chemistry; D018360:Crystallography, X-Ray; D055664:Electrochemical Techniques; D006108:Graphite / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D008968:Molecular Conformation; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry; D058105:Polymerization; D011789:Quantum Theory; D013053:Spectrophotometry
chemical_list: D001555:Benzene Derivatives; D056831:Coordination Complexes; D037742:Nanotubes, Carbon; D010165:Palladium; D006108:Graphite
keywords: Suzuki-Miyaura polymerization; conjugated polymer; graphene nanoribbon; nanographene; palladium catalysis