A turn-on Schiff base fluorescence sensor for zinc ion

Wei Hsun Hsieh, Chin Feng Wan, De Jhong Liao, An-Tai Wu

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Abstract

A simple Schiff base type fluorescent receptor 1 was prepared and evaluated for its fluorescence response to heavy metal ions. Receptor 1 exhibits an 'off-on-type' mode with high selectivity in the presence of Zn 2+ ion. The selectivity of 1 for Zn 2+ is the consequence of combined effects of chelation-enhanced fluorescence (CHEF), CN isomerization, and inhibition of photoinduced electron transfer (PET).

Original languageEnglish
Pages (from-to)5848-5851
Number of pages4
JournalTetrahedron Letters
Volume53
Issue number44
DOIs
Publication statusPublished - 2012 Oct 31

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All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Organic Chemistry
  • Drug Discovery

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