Yayu Wu, Guilin Zhuang, Shengsheng Cui, Yu Zhou, Jinyi Wang, Qiang Huang and Pingwu Du
Chem. Commun., 2019,55, 14617-14620
DOI:
10.1039/C9CC06492C,
Communication
Herein, we report the synthesis and characterization of a [2.2]paracyclophane-containing macrocycle (PCMC) as a new through-space conjugated macrocycle using only benzene groups as the skeleton. For comparison, a diphenylmethane-containing nanohoop macrocycle (DCMC) with a non-conjugated linker was also synthesized. Their structures were confirmed by NMR and HR-MS, and their photophysical properties were studied by UV-vis and fluorescence spectroscopies combined with theoretical calculations. The strain energy of PCMC was estimated to be as high as 72.58 kcal mol−1.