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Concise Synthesis and Crystal Structure of [12]Cycloparaphenylene

Yasutomo Segawa, Shinpei Miyamoto, Haruka Omachi, Sanae Matsuura, Petr Šenel, Takahiro Sasamori, Norihiro Tokitoh and Kenichiro Itami

Angew. Chem. Int. Ed. 2011, Early View. DOI: 10.1002/anie.201007232

 

The title macrocycle was constructed by a nickel-mediated shotgun macrocyclization. The X-ray crystallographic structure of [12]CPP revealed a circular structure incorporating two cyclohexane molecules within the ring. The [12]CPP molecules were also found to crystallize into tubular and herringbone structures.

 

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