A Three-Dimensional Capsule-like Carbon Nanocage as a Segment Model of Capped Zigzag [12,0] Carbon Nanotubes: Synthesis, Characterization, and Complexation with C70
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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三维胶囊状碳纳米笼作为加帽之字形的分段模型 [12,0] 碳纳米管：合成、表征以及与 C-70 的络合
DOI：
10.1002/anie.201804031
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发表时间：
2018-07-20
影响因子：
16.6
通讯作者：
Du, Pingwu
中科院分区：
文献类型：
--
作者：
Cui, Shengsheng;Zhuang, Guilin;Du, Pingwu
本文报道了一种新型的三维胶囊状六邻六苯二甲烯（HBC）碳纳米笼——tripodal-[2] HBC的合成及其光物理和超分子性质，这是首个盖顶之形[12,0]碳纳米管（CNTs）的合成模型。通过钯催化三硼基六苯并冠烯与l型环己烷单元的偶联，再经过镍介导的C-Br/C-Br偶联和环己烷部分的芳构化反应，合成了Tripodal-[2]HBC。利用紫外/可见光谱和荧光光谱进一步研究了三脚架-[2]HBC的物理性质及其与C-70的超分子主客体相互作用。理论计算表明，tripodal-[2] HBC的应变能高达55.2 kcal mol（-1）。
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 C-70 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).