Synthesis and evaluation of a novel pyrenyl-appended triazole-based thiacalix[4]arene as a fluorescent sensor for Ag+ ion

Ni, Xin-Long, Zeng, Xi, Redshaw, C and Yamato, Takehiko (2011) Synthesis and evaluation of a novel pyrenyl-appended triazole-based thiacalix[4]arene as a fluorescent sensor for Ag+ ion. Tetrahedron, 67 (18). pp. 3248-3253.

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Abstract

New fluorescent chemosensors 1,3-alternate-1 and 2 with pyrenyl-appended triazole-based on thiacalix[4]arene were synthesized. The fluorescence spectra changes suggested that chemosensors 1 and 2 are highly selective for Ag+ over other metal ions by enhancing the monomer emission of pyrene in neutral solution. However, other heavy metal ions, such as Cu2+, and Hg2+ quench both the monomer and excimer emission of pyrene acutely. The 1H NMR results indicated that Ag+ can be selectively recognized by the triazole moieties on the receptors 1 and 2 together with the ionophoricity cavity formed by the two inverted benzene rings and sulfur atoms of the thiacalix[4]arene.

Item Type:	Article
Faculty \ School:	Faculty of Science > School of Chemistry
Depositing User:	Rachel Smith
Date Deposited:	11 Apr 2011 14:15
Last Modified:	15 Dec 2022 01:25
URI:	https://ueaeprints.uea.ac.uk/id/eprint/28848
DOI:	10.1016/j.tet.2011.03.008

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