A cycloparaphenylene nanoring with graphenic hexabenzocoronene sidewalls
作者:Dapeng Lu、Haotian Wu、Yafei Dai、Hong Shi、Xiang Shao、Shangfeng Yang、Jinlong Yang、Pingwu Du
DOI:10.1039/c6cc03002e
日期:——
A novel hexabenzocoronene-containing cycloparaphenylene carbon nanoring is rationally designed and synthesized. The cycloparaphenylene structure is firstly observed by STM and its photophysical properties were further studied.
A Three-Dimensional Capsule-like Carbon Nanocage as a Segment Model of Capped Zigzag [12,0] Carbon Nanotubes: Synthesis, Characterization, and Complexation with C<sub>70</sub>
作者:Shengsheng Cui、Guilin Zhuang、Dapeng Lu、Qiang Huang、Hongxing Jia、Ya Wang、Shangfeng Yang、Pingwu Du
DOI:10.1002/anie.201804031
日期:2018.7.20
Herein we report the synthesis and photophysical and supramolecular properties of a novel three‐dimensional capsule‐like hexa‐peri‐hexabenzocoronene (HBC)‐containing carbonnanocage, tripodal‐[2]HBC, which is the first synthetic model of cappedzigzag [12,0] carbonnanotubes (CNTs). Tripodal‐[2]HBC was synthesized by the palladium‐catalyzed coupling of triboryl hexabenzocoronene and L‐shaped cyclohexane
The first synthesis of a pyrene-containing carbon nanoring, cyclo[12]paraphenylene[2]-2,7-pyrenylene ([12,2]CPPyr), is described. Through a sequence of stepwise macrocyclization using Pd and Ni catalysts followed by aromatization of L-shaped cyclohexane units afforded a [12,2]CPPyr in five steps from commercially available compounds. The UV-vis absorption and fluorescence spectra as well as TD-DFT calculations clarified the unique photophysical and electronic properties of the [12,2]CPPyr.
本文描述了含芘碳纳米管--环[12]对苯二甲酰亚胺[2]-2,7-芘([12,2]CPPyr)的首次合成。通过使用钯和镍催化剂进行一系列逐步大环化,然后对 L 型环己烷单元进行芳香化,在五个步骤中从市售化合物中得到了 [12,2]CPPyr。紫外-可见吸收和荧光光谱以及 TD-DFT 计算阐明了 [12,2]CPPyr 独特的光物理和电子特性。