A Three‐Dimensional Capsule‐like Carbon Nanocage as a Segment Model of Capped Zigzag [12,0] Carbon Nanotubes: Synthesis,Characterization, and Complexation with C70 |
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Abstract: | Herein we report the synthesis and photophysical and supramolecular properties of a novel three‐dimensional capsule‐like hexa‐peri‐hexabenzocoronene (HBC)‐containing carbon nanocage, tripodal‐2]HBC, which is the first synthetic model of capped zigzag 12,0] carbon nanotubes (CNTs). Tripodal‐2]HBC was synthesized by the palladium‐catalyzed coupling of triboryl hexabenzocoronene and L‐shaped cyclohexane units, followed by nickel‐mediated C−Br/C−Br coupling and subsequent aromatization of the cyclohexane moieties. The physical properties of tripodal‐2]HBC and its supramolecular host–guest interaction with C70 were further studied by UV/Vis and fluorescence spectroscopy. Theoretical calculations revealed that the strain energy of tripodal‐2]HBC was as high as 55.2 kcal mol−1. |
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Keywords: | Dreidimensionale Materialien Gekrü mmte polyaromatische Kohlenwasserstoffe Kohlenstoffnanorö hrensegmente Nanokä fige Nanokapseln |
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