A turn-on indole-based sensor for hydrogen sulfate ion

Chin Feng Wan, Shih Tse Yang, Hsiang Yi Lin, Ya Ju Chang, An Tai Wu

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A simple indole-based receptor 1 was prepared by a simple Schiff-base reaction of 1H-indole-3-carbaldehyde with ethane 1,2-diamine and its fluoroionophoric properties toward anions were investigated. Indole-based receptor 1 acts as a selective turn-on fluorescent sensor for HSO 4- in methanol among a series of tested anions. Fluorescence spectroscopy, ultraviolet and nuclear magnetic resonance imaging support that the HSO4- indeed interacted with imine nitrogen and the proton of nitrogen in indole ring.

Original languageEnglish
Pages (from-to)500-503
Number of pages4
Issue number5
Publication statusPublished - 2014 Aug

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Chemistry (miscellaneous)

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