Perylene Polyether Hybrids: Highly Soluble, Luminescent, Redox-Active Dyes

Mary Elizabeth Williams, Royce W. Murray

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

A new class of hybrid redox polyether melts has been prepared by covalent attachment of short polyethylene oxide "tails" to perylene, resulting in highly viscous materials with improved solubility in common solvents ranging from alcohols to toluene. Solid-state voltammetry of the neat, undiluted materials is made possible by dissolution of LiClO4 supporting electrolyte in them. The perylene0/1- electron self-exchange rate constants (kEX) are large. Temperature studies show that the energy barrier is also large but that the reactions are adiabatic. The ionic conductivity of the melts was measured to assess the effects of electron migration. The absorption and fluorescence properties of the perylene derivatives in dilute solution are independent of polyether tail length, while the fluorescence of thin undiluted films of the hybrids is red-shifted (relative to dilute solution) by ca. 125 nm and is dominated by excimer emission.

Original languageEnglish (US)
Pages (from-to)3603-3610
Number of pages8
JournalChemistry of Materials
Volume10
Issue number11
DOIs
StatePublished - Jan 1 1998

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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