Synthesis and characterization of novel indole-containing half-crowns as new emissive metal probes

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Two new indole derivatives have been synthesized by a one-pot procedure and their potential as fluorescence probes for metal ions was investigated. The sensor capability of 1 and 2 toward cations such as Ag+, Cu2+, Zn2+, Cd2+, Pb2+, and Hg2- was studied in dichloromethane solution by absorption, fluorescence emission, and 1H NMR titrations. Both probes showed selectivity for Ag+ and Hg2+ ions. The results suggest that these compounds may serve as promising models for future design of novel and more potent sensors.

Original languageEnglish
Pages (from-to)4930-4933
Number of pages4
JournalTetrahedron Letters
Issue number34
Publication statusPublished - 26 Aug 2009



  • Chemosensors
  • Half-crown
  • Indole
  • Silver(I)

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