一种分子束：双股[6]轮烷。
A molecular sheaf: doubly threaded [6]rotaxane.
作者信息
Huang Song, Wang Zhenwen, Wu Jinyang, Mai Xinyan, Qin Song, Zhou Yuqiao, Yuan Daqiang, Li Xiaowei, Feng Wen, Yuan Lihua
机构信息
College of Chemistry, Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China.
出版信息
Chem Commun (Camb). 2024 May 23;60(43):5622-5625. doi: 10.1039/d4cc00178h.
We report that the use of a hydrogen-bonded pyrimidine-macrocycle complex can efficiently facilitate the threading of two bispyridinium ethylenes into four rings, as evidenced by X-ray crystallography of its precursor, offering a rare example of a doubly threaded [6]rotaxane in 91% yield. The unusual architecture is found to be stable with no dethreading despite the large ring size of the macrocycle with respect to the stopper.
我们报道，使用氢键连接的嘧啶大环配合物能够有效地促进两个双吡啶乙烯穿入四个环中，这一点通过其前体的X射线晶体学得到证实，以91%的产率提供了一个罕见的双穿线[6]轮烷实例。尽管大环相对于封端基团的环尺寸较大，但发现这种不寻常的结构是稳定的，没有解穿线现象。
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