Journal
NATURE COMMUNICATIONS
Volume 9, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-018-05498-6
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Funding
- National Key Research and Development Program of China [2017YFA0206903]
- National Natural Science Foundation of China [21672227, 21573179]
- Chinese Academy of Sciences [XDB17000000]
- China Postdoctoral Science Foundation [2016M601140]
- Recruitment Program of Global Experts
- Top-Notch Young Talents Program of China
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Besides its mathematical importance, the Mobius 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 Mobius-type molecules have been isolated by synthetic chemists accompanied by extensive computational studies, the design, preparation, and characterization of stable Mobius-conjugated molecules remain a nontrivial task to date, let alone that of molecular Mobius 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 Mobius 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 Mobius conformations stabilized by non-covalent interactions.
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