Abstract
Line-broadening due to paramagnetic relaxation was observed in Mössbauer spectra of Eu2+ in glassy frozen solutions; such broadening may be used as an indicator of the state of dispersion of europium. It was demonstrated by the Mössbauer technique that Eu2+ was oxidized to Eu3+ by photoirradiation at λ>300 nm and that this oxidation reaction was induced by photoexcitation of the 320-nm band of Eu2+.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. D. Vavis, K. L. Stevenson, G. K. King,Inorg. Chem., 16 /1977/ 670.
M. Brandys, G. Stein,J. Phys. Chem., 82 /1978/ 852.
V. V. Korolev, N. M. Bazhin,Chem. Phys. Lett., 43 /1976/ 469.
E. A. Samuel, W. N. Delgass,J. Chem. Phys., 62 /1975/ 1590.
H. H. Wickman,Phys. Lett., 31A /1970/ 29.
S. Yamauchi, Y. Sakai, H. Nishioji, T. Tominaga,Int. J. Appl. Radiation Isotopes, 34 /1983/ 977.
H. H. Wickman, M. P. Klein, D. A. Shirley,Phys. Rev., 152 /1966/ 345.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Yamauchi, S., Minai, Y. & Tominaga, T. Mössbauer study on the state of dispersion of Eu/II/in frozen aqueous solutions and its photooxidation to Eu/III/. Journal of Radioanalytical and Nuclear Chemistry Letters 93, 237–243 (1985). https://doi.org/10.1007/BF02170240
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02170240