Sugar-poly(para-phenylene ethynylene) conjugates as sensory materials: Efficient quenching by Hg2+ and Pb2+ ions

Ik Bum Kim, Belma Erdogan, James N. Wilson, Uwe H.F. Bunz

Research output: Contribution to journalArticle

211 Scopus citations

Abstract

Three polar poly(para-phenylene ethynylene)s (PPE) were synthesized by utilizing the Heck-Sonogashira protocol. Two of the PPEs carry β-glucopyranose substituents. Depending upon the linker used between the glycol units and the backbone, the fluorescence of these PPEs can be quenched by Hg2+ and Pb2+ to a varying degree. Monomeric model compounds that are substituted with only one glucose unit are not efficiently quenched. The presence of many glucose substituents in one PPE assembly led to a large increase in the binding constant to Hg2+ and quenching of the fluorescence was amplified.

Original languageEnglish (US)
Pages (from-to)6247-6254
Number of pages8
JournalChemistry - A European Journal
Volume10
Issue number24
DOIs
StatePublished - Dec 3 2004
Externally publishedYes

Keywords

  • Alkynes
  • Conjugated polymers
  • Glucose
  • Sensors
  • Transition metals

ASJC Scopus subject areas

  • Chemistry(all)

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