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Influence of Temperature on the Lifetime of Electronically Excited Uranyl Ion: II. Frozen Aqueous Solutions of H2SO4. Effect of Phase Transitions

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Abstract

The temperature dependences of the lifetime (τ) of electronically excited uranyl ion (UO2 2 +)*, measured both on heating from 77 K and on cooling from 300 to 77 K of UO2SO4 solutions in 0.2-5.0 M of H2SO4, pass through extrema. The peaks of phase transitions in DTA curve and peaks in the temperature dependence of τ appear at the same temperature. The influence of the phase transitions on the temperature dependence of τ is due not only to a change in the molecular mobility upon a phase transition (this factor causes the temperature quenching) but also to the concentration quenching of excited states of (UO2 2 +)*.

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REFERENCES

  1. Lotnik, S.V. Khamidullina, L.A., and Kazakov, V.P., Radiokhimiya, 2003, vol. 45, no. 6, pp. 494¶498.

    Google Scholar 

  2. Galanin, M.D., Zh. Eksp. Teor. Fiz., 1951, vol. 21, no. 2, p. 126.

    Google Scholar 

  3. Allsop, S.R., Cox, A., Kemp, T.J., et al., J. Chem. Soc., Faraday Trans. 1, 1979, vol. 75, no. 2, p. 342.

    Google Scholar 

  4. Stepanov, A.V., Preobrazhenskaya, E.B., and Nikitina, S.A., Radiokhimiya, 1984, vol. 26, no. 6, p. 798.

    Google Scholar 

  5. Korobeinikova, V.N., Kazakov, V.P., and Chuvilin, Yu.N., Dokl. Akad. Nauk SSSR, 1973, vol. 213, no. 4, p. 884.

    Google Scholar 

  6. Lotnik, S.V., Kazakov, V.P., and Kalinina, V.M., Zh. Fiz. Khim., 1991, vol. 65, no. 5, p. 1416.

    Google Scholar 

  7. Gable, C.M., Betz, H.F., and Maron, S.H., J. Am. Chem. Soc., 1950, vol. 72, no. 4, p. 1445.

    Google Scholar 

  8. Lotnik, S.V., Khamidullina, L.A., and Kazakov, V.P., Dokl. Ross. Akad. Nauk, 1996, vol. 347, no. 5, p. 641.

    Google Scholar 

  9. Hornung, E.W., Brackett, T.E., and Giauque, W.F., J. Am. Chem. Soc., 1956, vol. 78, no. 22, p. 5747.

    Google Scholar 

  10. Zhang, R., Wolldridge, P.J., Abbatt, J.P.D., and Molina, M.L., J. Phys. Chem., 1993, vol. 97, no. 28, p. 7351.

    Google Scholar 

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Authors and Affiliations

  1. Bashkir State Agricultural University, Ufa, Bashkortostan, Russia

    S. V. Lotnik

  2. Bashkir State Agricultural University, Ufa, Bashkortostan, Russia

    L. A. Khamidullina & V. P. Kazakov

Authors
  1. S. V. Lotnik
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  2. L. A. Khamidullina
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  3. V. P. Kazakov
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Lotnik, S.V., Khamidullina, L.A. & Kazakov, V.P. Influence of Temperature on the Lifetime of Electronically Excited Uranyl Ion: II. Frozen Aqueous Solutions of H2SO4. Effect of Phase Transitions. Radiochemistry 45, 555–558 (2003). https://doi.org/10.1023/B:RACH.0000015750.25936.97

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  • DOI: https://doi.org/10.1023/B:RACH.0000015750.25936.97

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