Microchimica Acta

, Volume 161, Issue 1–2, pp 209–216

Emission based oxygen sensing approach with tris(2,2′-bipyridyl)ruthenium(II)chloride in green chemistry reagents: room temperature ionic liquids

  • Sevinc Z. Topal
  • Kadriye Ertekin
  • Derya Topkaya
  • Serap Alp
  • Berrin Yenigul
Original Paper

Abstract.

Room temperature ionic liquids doped with tris(2,2′-bipyridyl)ruthenium(II)chloride together with chemically and biochemically inert perfluoro chemicals (PFCs) have been used for the first time for optical O2 sensing purposes.

The response to oxygen of the Ru complex in 1-methyl-3-butylimidazolium tetrafluoroborate (RTIL-I) and 1-methyl-3-butylimidazolium bromide (RTIL-II) has been evaluated in terms of sensitivity, stability, regeneration ability and response time. The response times were 2 and 5 s, respectively, and the signal changes were reversible. Better oxygen solubility, enhanced molar absorption coefficients and photostabilies were found for the RTILs. The stability the Ru complex in RTILs was tested over 12 months and it is when stored in the ambient air of the laboratory.

Keywords: Room temperature ionic liquid; ionic liquid; optical oxygen sensing; fluorescence; Ru(bpy)3 complex 

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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Sevinc Z. Topal
    • 1
  • Kadriye Ertekin
    • 2
  • Derya Topkaya
    • 2
  • Serap Alp
    • 2
  • Berrin Yenigul
    • 1
  1. 1.Department of Chemistry, Faculty of Arts and SciencesUniversity of EgeBornovaTurkey
  2. 2.Department of Chemistry, Faculty of Arts and SciencesUniversity of Dokuz EylulBucaTurkey

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