An isolable catenane consisting of two Möbius conjugated nanohoops

Yang-Yang Fan, Dandan Chen, Ze-Ao Huang, Jun Zhu (), Chen-Ho Tung, Li-Zhu Wu and Huan Cong ()
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Yang-Yang Fan: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Dandan Chen: Xiamen University
Ze-Ao Huang: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Jun Zhu: Xiamen University
Chen-Ho Tung: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Li-Zhu Wu: University of Chinese Academy of Sciences, Chinese Academy of Sciences
Huan Cong: University of Chinese Academy of Sciences, Chinese Academy of Sciences

Nature Communications, 2018, vol. 9, issue 1, 1-5

Abstract: Abstract Besides its mathematical importance, the Möbius topology (twisted, single-sided strip) is intriguing at the molecular level, as it features structural elegance and distinct properties; however, it carries synthetic challenges. Although some Möbius-type molecules have been isolated by synthetic chemists accompanied by extensive computational studies, the design, preparation, and characterization of stable Möbius-conjugated molecules remain a nontrivial task to date, let alone that of molecular Möbius strips assembling into more complex topologies. Here we report the efficient synthesis, crystal structure, and theoretical study of a catenane consisting of two fully conjugated nanohoops exhibiting Möbius topology in the solid state. This work highlights that oligoparaphenylene-derived nanohoops, a family of highly warped and synthetically challenging conjugated macrocycles, can not only serve as building blocks for interlocked supermolecular structures, but also represent a new class of compounds with isolable Möbius conformations stabilized by non-covalent interactions.

Date: 2018
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DOI: 10.1038/s41467-018-05498-6

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