Intermolecular energy transfer from UO2+2 to Eu3+ in solutions |
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Authors: | B.D. Joshi A.G.I. Dalvi T.R. Bangia |
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Affiliation: | Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Bombay 400085, India |
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Abstract: | The quenching constants for the UO2+2 ion fluorescence by the Eu3+ ion in H2O, D2O, potassium formate and acetic acid media were determined by measuring the decrease in intensity of the 5050 Å fluorescence peak and the lifetime of the UO2+2 ion fluorescence. The energy transferred to the Eu3+ ion was found to be a small fraction of the energy lost by the UO2+2 ion by the non-radiative processes. The variations of the quenching constants of the UO2+2 ion and the fluorescence lifetimes were determined for different concentrations of potassium formate and acetic acid. These results indicate that the UO2+2 ion forms inner sphere complexes with the two ligands mentioned. |
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