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- W4309246388 abstract "Here, we report the synthesis of BN-doped graphenoid nanoribbons, in which peripheral carbon atoms at the zigzag edges have been selectively replaced by boron and nitrogen atoms as BN and NBN motifs. This includes high-yielding ring closure key steps that, through N-directed borylation reaction using solely BBr3, allow the planarization of meta-oligoarylenyl precursors, through the formation of B-N and B-C bonds, to give ter-, quater-, quinque-, and sexi-arylenyl nanoribbons. X-ray single-crystal diffraction studies confirmed the formation of the BN and NBN motifs and the zigzag-edged topology of the regularly doped ribbons. Steady-state absorption and emission investigations at room temperature showed a systematic bathochromic shift of the UV-vis absorption and emission envelopes upon elongation of the oligoarylenyl backbone, with the nanoribbon emission featuring a TADF component. All derivatives displayed phosphorescence at 77 K. Electrochemical studies showed that the π-extension of the peri-acenoacene framework provokes a lowering of the first oxidative event (from 0.83 to 0.40 V), making these nanoribbons optimal candidates to engineer p-type organic semiconductors." @default.
- W4309246388 created "2022-11-25" @default.
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- W4309246388 date "2022-11-17" @default.
- W4309246388 modified "2023-09-29" @default.
- W4309246388 title "<i>peri</i>-Acenoacene Ribbons with Zigzag BN-Doped Peripheries" @default.
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- W4309246388 doi "https://doi.org/10.1021/jacs.2c06803" @default.
- W4309246388 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36394460" @default.
- W4309246388 hasPublicationYear "2022" @default.
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