Journal
CHEMICAL COMMUNICATIONS
Volume 52, Issue 44, Pages 7164-7167Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc03002e
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Funding
- NSFC [21271166, 21473170]
- Fundamental Research Funds for the Central Universities
- Program for New Century Excellent Talents in University (NCET)
- Thousand Young Talents Program
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Herein we report the synthesis of a novel hexabenzocoronene-containing cycloparaphenylene carbon nanoring, cyclo[12]-paraphenylene[2]-2,11-hexabenzocoronenylene, by metal-mediated cross-coupling reactions. The nanoring was accomplished by rationally designed palladium-catalyzed coupling of diborylhexabenzocoronene and L-shaped cyclohexane units, followed by nickel-mediated C-Br/C-Br coupling and the aromatization of cyclohexane moieties. The structure was confirmed by NMR and HR-MS. Especially, the cycloparaphenylene structure is firstly observed by STM. The photophysical properties were studied using UV-Vis spectroscopy, photoluminescence (PL) spectroscopy, and theoretical calculations.
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