Li?π interaction in coronene-azacrown ether system |
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| Authors: | Hiroyuki Takemura Katsuya Sako |
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| Affiliation: | a Department of Chemistry, Faculty of Science, Kyushu University, Ropponmatsu 4-2-1, Chuo-ku, Fukuoka 810-8560, Japan
b Nagoya Institute of Technology, Department of Systems Management and Engineering, Gokiso, Showa-ku, Nagoya 466-8555, Japan |
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| Abstract: | The combination of the coronene ring and azacrown ether generated a new kind of host molecule in which the Li+ binding ability originated from the cation-dipole interaction (crown moiety) and the cation-π interaction (coronene ring). Introducing a large π face (coronene ring) enhanced cation binding ability of the crown ether. The NMR, the fluorescence spectra, and ab initio calculations strongly indicated the effect of the cation-π interaction. |
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| Keywords: | Cation-π Crown compounds Host-guest systems Macrocyclic ligands |
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