期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 143, 期 15, 页码 5654-5658出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.1c01882
关键词
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资金
- Max Planck Society
- Fund of Scientific Research Flanders (FWO) [EOS 30489208]
- FLAG-ERA Grant OPERA [DFG 437130745]
- Alexander von Humboldt Foundation
- Interdisciplinary Centre for Mathematical and Computational Modelling (ICM) at the University of Warsaw [G53-8, GB83-28]
- Fonds de la Recherche Scientifiques de Belgique (F.R.S.-FNRS) [2.5020.11]
- Walloon Region [1117545]
- Chinese Scholarship Council (CSC)
Graphene nanoribbons (GNRs), as a new family of semiconductors, offer promising opportunities for tuning optical and electronic properties. The novel fjord-edged GNR (FGNR) with nonplanar geometry was synthesized and characterized through various spectroscopic analyses, providing insights into its structural and photophysical properties.
As a new family of semiconductors, graphene nanoribbons (GNRs), nanometer-wide strips of graphene, have appeared as promising candidates for next-generation nanoelectronics. Out-of-plane deformation of p-frames in GNRs brings further opportunities for optical and electronic property tuning. Here we demonstrate a novel fjord-edged GNR (FGNR) with a nonplanar geometry obtained by regioselective cyclodehydrogenation. Triphenanthro-fused teropyrene 1 and pentaphenanthro-fused quateropyrene 2 were synthesized as model compounds, and single-crystal X-ray analysis revealed their helically twisted conformations arising from the [5]helicene substructures. The structures and photophysical properties of FGNR were investigated by mass spectrometry and UV-vis, FT-IR, terahertz, and Raman spectroscopic analyses combined with theoretical calculations.
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