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.

[img] PDF (10.1016_j.tet.2011.03.008.pdf)
Download (585kB)

    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
    Related URLs:
    Depositing User: Rachel Smith
    Date Deposited: 11 Apr 2011 15:15
    Last Modified: 25 Jul 2018 04:01
    URI: https://ueaeprints.uea.ac.uk/id/eprint/28848
    DOI: 10.1016/j.tet.2011.03.008

    Actions (login required)

    View Item