Highly Selective Fluorescent Probe Based on 2-(2′-Dansylamidophenyl)-Thiazole for Sequential Sensing of Copper(II) and Iodide Ions

Bo Yeon Kim, Anup Pandith, Chan Sik Cho, Hong Seok Kim

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

A novel highly selective fluorescent probe based on 2-(2′-dansylamidophenyl)-4-phenylthiazole (1) is developed for sequential sensing of copper(II) and iodide ions in acetonitrile. The fluorescence mechanism is based on cation-induced inhibition of excited-state intramolecular hydrogen transfer, intramolecular charge transfer, and metal–ligand electron/charge transfer. Subsequent iodide-induced extrusion of copper(II) results in partial revival of fluorescence. Probe 1 and its ensemble with copper (II) show high selectivity for copper(II) and iodide ions, respectively, in acetonitrile solution.

Original languageEnglish
Pages (from-to)163-168
Number of pages6
JournalBulletin of the Korean Chemical Society
Volume40
Issue number2
DOIs
Publication statusPublished - Feb 2019
Externally publishedYes

Keywords

  • Cu
  • Dansyl-thiazole conjugate
  • Excited-state intramolecular hydrogen transfer
  • I
  • Intramolecular charge transfer

ASJC Scopus subject areas

  • Chemistry(all)

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