Synthesis and Spectroscopic Study of Europium(III) in Heteropolyanion [EuP₅W₃₀O₁₁₀]^12-

Abstract

The heteropolyanions of Preyssler anion [NaP5 W30 O110]14-and its europium-encrypted derivative [EuP5 W30 O110]12 were prepared and spectroscopically characterized. The compositions of these heteropolyanions were verifred based oji tle results from elemental and thermogravimetric analysis and the data of spectrophotometric determination of tungsten contents. Absorption in the UV-vis and IR region and luminescence spectra, as well as results of the laser-induced europium ion luminescence spectroscopy, obtained for solid complexes and their solutions, were analysed. Both in solid and solution the europium-encrypted derivative las three water molecules of hydration.