Bottom-Up Synthesis of Heteroatom-Doped Chiral Graphene Nanoribbons

Bottom-up synthesis of graphene nanoribbons (GNRs) has significantly advanced during the past decade, providing various GNR structures with tunable properties. The synthesis of chiral GNRs, however, has been underexplored and only limited to (3,1)-GNRs. We report herein the surface-assisted synthesi...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2018-07, Vol.140 (29), p.9104-9107
Main Authors: Wang, Xiao-Ye, Urgel, José I, Barin, Gabriela Borin, Eimre, Kristjan, Di Giovannantonio, Marco, Milani, Alberto, Tommasini, Matteo, Pignedoli, Carlo A, Ruffieux, Pascal, Feng, Xinliang, Fasel, Roman, Müllen, Klaus, Narita, Akimitsu
Format: Article
Language:English
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Summary:Bottom-up synthesis of graphene nanoribbons (GNRs) has significantly advanced during the past decade, providing various GNR structures with tunable properties. The synthesis of chiral GNRs, however, has been underexplored and only limited to (3,1)-GNRs. We report herein the surface-assisted synthesis of the first heteroatom-doped chiral (4,1)-GNRs from the rationally designed precursor 6,16-dibromo-9,10,19,20-tetraoxa-9a,19a-diboratetra­benzo­[a,f,j,o]­perylene. The structure of the chiral GNRs has been verified by scanning tunneling microscopy, noncontact atomic force microscopy, and Raman spectroscopy in combination with theoretical modeling. Due to the presence of oxygen–boron–oxygen (OBO) segments on the edges, lateral self-assembly of the GNRs has been observed, realizing well-aligned GNR arrays with different modes of homochiral and heterochiral inter-ribbon assemblies.
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.8b06210