Synthesis,crystal structure and complexation behaviour of a thiacalix[4]arene bearing 1,2,3-triazole groups |
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| Authors: | Xin-Long Ni Xi Zeng David L Hughes Carl Redshaw |
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| Affiliation: | 1. Department of Applied Chemistry , Faculty of Science and Engineering, Saga University , Honjo-machi 1, Saga-shi, Saga, 840-8502, Japan;2. Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University , Guiyang, Guizhou, 550025, P.R. China;3. School of Chemistry, University of East Anglia , Norwich, NR4 7TJ, UK |
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| Abstract: | The structure and complexation behaviour of 1,3-alternate-1,2,3-triazole based on thiacalix4]arene,1,3-alternate-1 and 2 have been determined by means of X-ray analysis, fluorescence and 1H NMR spectroscopy. The X-ray results suggested that the nitrogen atom N3 on triazole ring can act as hydrogen bond acceptors in the self-assembly of a supramolecular structure. The fluorescence spectra changes indicated that the thiacalix4]arene bearing 1,2,3-triazole groups were highly selective for Ag+ in comparison with other tested metal ions by enhancement of the monomer emission of pyrene. The 1H NMR results suggested that Ag+ can be strongly bonded by the triazole groups with the cooperation of the ionophoric cavity formed by the two inverted benzene rings and the sulfur atoms of the thiacalix4]arene. |
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| Keywords: | thiacalixarene triazole ring crystal structure fluorescent sensor silver ion |
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