Pentacyclic Nano‐Trefoil
Pentacyclic Nano‐Trefoil
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五环纳米三叶
DOI：
10.1002/anie.202010436
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Habata Yoichi
中科院分区：
文献类型：
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作者：
Ju Huiyeong;Tsuruoka Yumiko;Hayano Miho;Lee Eunji;Park Ki‐Min;Ikeda Mari;Ishi‐i Jun‐ichi;Kuwahara Shunsuke;Habata Yoichi
合成了含两个4-(4‘-吡啶基)苯基和两个3，5-二氟苯基的四臂环(1)及其银离子配合物，并对其结构进行了表征。1和Ag+形成的络合物经历了2：2二聚体络合物和3：5五环三叶络合物之间的可逆结构转变，并改变了Ag+/1的摩尔比。实验还表明，3：5的三叶络合物能够选择性地包覆苯和[D6]苯。苯分子与配体分子之间的C−H⋅⋅⋅F−C相互作用稳定了苯环上的结构。
Tetra‐armed cyclen (1) bearing two 4‐(4′‐pyridyl)benzyl and two 3,5‐difluorobenzyl groups and its Ag+complexes were prepared and structurally characterized. The complexes formed between1and Ag+undergoes a reversible structural transformation between a 2:2 dimeric complex and a 3:5 pentacyclic trefoil complex with changes in the Ag+/1molar ratio. It was also revealed that the 3:5 trefoil complex could encapsulate benzene and [D6]benzene selectively in solid‐state. The benzene‐included structures are stabilized by C−H⋅⋅⋅F−C interactions between the benzene molecule and the ligand molecule.