期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 13, 期 32, 页码 8953-8959出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200701067
关键词
dynamic covalent chemistry; host-guest systems; multicomponent reactions; nanostructures; supramolecular chemistry
Molecular container compounds have a range of potential applications in chemical and biological sciences, most notably as nanoreactors, drug delivery devices, and storage materials. We report a highly efficient dynamic covalent chemistry approach for the synthesis of covalent rhombicuboctahedral nanocapsule 1 from 14 square- and triangular-shaped molecular components. The nanocapsule is obtained in a one-pot reaction in high yield and high purity, and has a solvo-dynamic diameter of 3.9 nm. In our approach, six formyl cavitands and eight 1,3,5-tris(p-aminophenyl)benzene molecules are assembled into a molecular rhombicuboctahedron through twenty four newly formed dynamic imine bonds. Binding studies show that I encapsulates tetraalkylammonium salts in toluene. We also discuss the growth mechanism of this nanocapsule.
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