Cycloparaphenylene and their radicals anchored to a metal?organic framework |
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Authors: | Z Jiang W Duan W Lin L Yang Z Wu J Wang S Wang P Du Q Li |
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Institution: | 1. Department of Chemistry, IChEM, And Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, PR China;2. Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, IChEM, University of Science and Technology of China, Hefei, Anhui, 230026, PR China |
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Abstract: | Cycloparaphenylene (CPP) shows modulated photophysical and electronic properties due to its strained structure and radially oriented π-electron system. Incorporation of CPP into metal-organic frameworks (MOFs) could transfer its extensive properties in solution to porous solids. Moreover, with the unique arrangement of the macrocycles and their interactions with the framework, emerging characteristics are anticipated. As an example of “robust dynamics”, we synthesized the first MOF structure (FDM-1001) with CPP precisely anchored to the ordered framework by employing a 8]CPP-containing linear dicarboxylate linker. Metric relationship between the dynamic macrocycles and the robust backbone creates ideal π-π interactions between them, which leads to an essentially directional arrangement of 8]CPP in the three-dimensional space. Furthermore, the MOF with 8]CPP could be successfully oxidized to generate an infinite array of radicals that show enhanced air stability compared to its molecular analogue. |
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Keywords: | Reticular chemistry Nanohoop Open framework Robust dynamics Directional arrangement |
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