Synthesis, crystal structures and complexation behaviours ofthiacalix[4]arenes bearing 1,2,3-triazole groups

Xin-Long Ni, Xi Zeng, David L. Hughes, Carl Redshaw, Takehiko Yamato

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The structure and complexation behaviour of 1,3-alternate-1,2,3-triazole based on thiacalix[4]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 thiacalix[4]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 thiacalix[4]arene.
Original languageEnglish
Pages (from-to)689-695
Number of pages7
JournalSupramolecular Chemistry
Issue number10
Publication statusPublished - 1 Oct 2011

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