Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 140, Issue 29, Pages 9104-9107Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.8b06210
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Funding
- Max Planck Society
- European Union's Horizon 2020 research and innovation programme [696656]
- GrapheneCore2 [785219]
- Swiss National Science Foundation
- Swiss Supercomputing Center (CSCS project) [s746]
- PRACE Project [2016153518]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC Consolidator Grant (ERC CoG 2016 EspLORE Grant) [724610]
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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.
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