Y. Takahashi et al., LASER-INDUCED LUMINESCENCE STUDY OF EUROPIUM(III) POLYACRYLATE AND POLYMALEATE COMPLEXES, Journal of radioanalytical and nuclear chemistry, 212(1), 1996, pp. 11-21
Luminescence lifetime of Eu(III) in polvacrylate and polymaleate compl
exes has been measured to evaluate the number of water molecules bound
to the ion. The number of residual water molecules hydrated to Eu(III
) in the polyacrylate and polymaleate complexes ranged from 3.5 to 4.5
when the supporting electrolyte concentration was 0.01 The residual h
ydration number decreased with the addition of supporting electrolyte.
These results indicate that Eu(III) is surrounded by polymolecular li
gands in these complexes.