Selective Host–Guest Interactions of a Transformable Coordination Capsule/Tube with Fullerenes |
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Authors: | Norifumi Kishi Prof. Dr. Munetaka Akita Dr. Michito Yoshizawa |
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Affiliation: | Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori‐ku, Yokohama 226‐8503 (Japan) |
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Abstract: | An M2L4 coordination capsule or an M2L2 coordination tube was selectively formed by the combination of HgII hinges and bent bispyridine ligands. The two structures reversibly interconvert at room temperature in response to modulation of the metal‐to‐ligand ratio and exhibit different host–guest interaction behavior. The capsule alone encapsulates large spherical molecules, fullerenes C60 and C70, and the bound guests are released upon capsule‐to‐tube transformation by the simple addition of metal ions. |
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Keywords: | coordination capsules coordination tubes fullerenes host– guest systems polyaromatic ligands |
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