Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno , Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy.
J Org Chem. 2017 Sep 15;82(18):9885-9889. doi: 10.1021/acs.joc.7b01588. Epub 2017 Aug 29.
[8]Cycloparaphenylene derivative 1 has been synthesized and its recognition abilities toward pyridinium guests have been investigated and compared with the [8]CPP macrocycle. The results showed a fine-tuning of the binding properties of [8]CPP 1 toward pyridinium cations due to the presence of the 1,4-DMB ring. DFT calculations indicate that the close steric fitting between the rigid cavity of 1 and the pyridinium guest is the crucial factor for the stabilization of their supramolecular complex through C-H···π and N···π interactions.
[8]并环苯并菲衍生物 1 已被合成，其对吡啶鎓客体的识别能力已被研究，并与 [8]CPP 大环进行了比较。结果表明，由于存在 1,4-二甲基苯环，[8]CPP 1 对吡啶鎓阳离子的结合性能得到了精细调节。DFT 计算表明，刚性空腔 1 与吡啶鎓客体之间的紧密空间匹配是通过 C-H···π 和 N···π 相互作用稳定其超分子配合物的关键因素。
