Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan.
Chem Commun (Camb). 2014 Jan 28;50(8):957-9. doi: 10.1039/c3cc48198k.
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.
首次合成了一种含芘的碳纳米环，即环己[12]并对亚苯基[2]-2,7-芘([12,2]CPPyr)。通过使用 Pd 和 Ni 催化剂的逐步大环化反应，然后对 L 形环己烷单元进行芳构化，从商业可得的化合物出发，经过五步反应即可得到[12,2]CPPyr。通过紫外-可见吸收光谱和荧光光谱以及 TD-DFT 计算，阐明了[12,2]CPPyr 的独特光物理和电子性质。
