Xia Li , Yandie Liu , Zhenglin Du , Qiangsheng Zhang , Qing Chen , Jialin Xie , Kelong Zhu
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Bowl-in-bowl encapsulation of corannulene by herteroatom-bridged nanobelts
Nanobelts are a rapidly developing family of macrocycles with appealing features. However, their host-guest chemistry is currently limited to the recognition of fullerenes via π–π interactions. Herein, we report two heteroatom-bridged [8]cyclophenoxathiin nanobelts ([8]CP-Me and [8]CP) encapsulate corannulene (Cora) to form bowl-in-bowl supramolecular structures stabilized mainly through CH–π interactions in solid-state. The convex surface of corannulene is oriented towards the cavity due to geometry complementarity. The complex Cora⊂[8]CP exhibits a unique 2:2 capsule-like structure in crystal packing, in which corannulene adopts a concave-to-concave assembling fashion. This work enriches the molecular recognition of nanobelts and demonstrates that CH–π interactions can act as the main driving force for nanobelts host-guest complexes.
期刊介绍：
Chinese Chemical Letters (CCL) (ISSN 1001-8417) was founded in July 1990. The journal publishes preliminary accounts in the whole field of chemistry, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, polymer chemistry, applied chemistry, etc.Chinese Chemical Letters does not accept articles previously published or scheduled to be published. To verify originality, your article may be checked by the originality detection service CrossCheck.
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