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Photoexcitation of europium(III) in various electrolytes: Dependence of the luminescence lifetime on the type of salts and the ionic strength

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Published/Copyright: September 25, 2009
Radiochimica Acta
From the journal Radiochimica Acta Volume 91 Issue 1

Summary

The fluorescence characteristics (lifetime, excitation and emission spectra) of aqueous solutions of Eu(III) containing various supporting electrolytes such as HCl, NaCl, LiCl, CsCl, MgCl2, HClO4 and NaClO4 have been measured. The observed lifetime variations cannot be properly described neither through the hydration sphere phenomenological approach nor through a Stern–Volmer relationship. Long-range interactions between the excited ion and solvent molecules, in addition to an outer-sphere complexation with the anions, are proposed to account for the observed variations.

Published Online: 2009-9-25
Published in Print: 2003-1-1

© 2003 Oldenbourg Wissenschaftsverlag GmbH

Articles in the same Issue

  1. Study of 194Tlg decay
  2. Reactions of Am(III) and Eu(III) with potassium ferricyanide in nitric acid solutions
  3. Uranyl(VI) complexes with alpha-substituted carboxylic acids in aqueous solution
  4. Soluble and particle-bound 234,238U, 226Ra and 210Po in ground waters
  5. Use of combined solvent extraction-electrodeposition techniques to uranium and thorium isotopes analysis in industrial phosphoric acid, phosphate and phosphogypsum by alpha-particle spectrometry
  6. Photoexcitation of europium(III) in various electrolytes: Dependence of the luminescence lifetime on the type of salts and the ionic strength
  7. Effects of basicity and FeO concentration on the retention of 137Cs and 60Co in slag made from non-metallic radioactive wastes
  8. Characterization of complexation reactions of mono- and bidentate-hydroxymethyl phosphine ligands with the organometallic 99mTc(I)(OH2)3(CO)3+ synthon
  9. An EC-branch in the decay of 27-s 263Db: Evidence for the isotope 263Rf
https://doi.org/10.1524/ract.91.1.37.19009

Articles in the same Issue

  1. Study of 194Tlg decay
  2. Reactions of Am(III) and Eu(III) with potassium ferricyanide in nitric acid solutions
  3. Uranyl(VI) complexes with alpha-substituted carboxylic acids in aqueous solution
  4. Soluble and particle-bound 234,238U, 226Ra and 210Po in ground waters
  5. Use of combined solvent extraction-electrodeposition techniques to uranium and thorium isotopes analysis in industrial phosphoric acid, phosphate and phosphogypsum by alpha-particle spectrometry
  6. Photoexcitation of europium(III) in various electrolytes: Dependence of the luminescence lifetime on the type of salts and the ionic strength
  7. Effects of basicity and FeO concentration on the retention of 137Cs and 60Co in slag made from non-metallic radioactive wastes
  8. Characterization of complexation reactions of mono- and bidentate-hydroxymethyl phosphine ligands with the organometallic 99mTc(I)(OH2)3(CO)3+ synthon
  9. An EC-branch in the decay of 27-s 263Db: Evidence for the isotope 263Rf
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