Versatile formation of [2]catenane and [2]pseudorotaxane structures; threading and noncovalent stoppering by a self-assembled macrocycle |
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| Authors: | Lim Choon Woo Sakamoto Shigeru Yamaguchi Kentaro Hong Jong-In |
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| Institution: | Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-747, Korea. |
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| Abstract: | A self-assembled dimeric macrocycle between 4,4'-bis(4-pyridylmethoxy)biphenyl (L) and (en)Pd(NO(3))(2) was constructed, and its interactions with cyclodextrins of different cavity size resulted in the formation of 2]catenane and 2]pseudorotaxane systems, respectively. The structures were identified by 1D and 2D NMR spectroscopy and cold spray ionization mass (CSI-MS) spectrometry. |
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