Highly sensitive and selective fluoride ion chemosensing, fluoroalkylated polysilane

Anubhav Saxena, Michiya Fujiki, Roopali Rai, Sun Young Kim, Giseop Kwak

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

This paper reports a new and simple approach for the amplified detection of fluoride ions by a polymer-based chemosensor made of stiff fluoroalkylated polysilane, poly-(3,3,3-trifluoropropylmethylsilane). This chemosensor exhibited extreme sensitivity and selectivity towards fluoride ions by a decrease in the photolaminescence (PL) intensity with parts per billion concentrations of fluoride ions in solution in tetrahydrofuran (THF). The quencing constant for fluoride ions (K = 1.35 × 107 M-1) was found to be exceptionally high.

Original languageEnglish
Pages (from-to)1771-1775
Number of pages5
JournalMacromolecular Rapid Communications
Volume25
Issue number20
DOIs
StatePublished - 22 Oct 2004

Keywords

  • Conformation
  • Fluoride ion
  • Fluoropolymers
  • Luminescence
  • Polysilanes
  • Sensors

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