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Revista de Chimie (Rev. Chim.), Year 2008, Volume 59, Issue 8,

https://doi.org/10.37358/RC.08.8.1920

Doina Humelnicu, Romeo-Iulian Olariu, Ion Sandu, Nicolae Apostolescu, Andrei Victor Sandu, Cecilia Arsene

New Heteropolyoxotungstates and Heteropolyoxomolybdates Containing Radioactive Ions (uranyl and thorium) in their Structure

Abstract:

New heteropolyoxotungstate and heteropolyoxomolybdate complexes containing uranyl (UO22+) and thorium (Th4+) radioactive ions have been synthesized in aqueous solution under controlled conditions of temperature and pH. The synthesised compounds were unambiguous characterized by means of elemental analysis, Fourier Transformed Infrared Spectroscopy (FTIR), UV-vis spectrophotometry, scanning electronic microscopy (SEM) with electron diffraction X-ray (EDX) detection and thermogravimetric analysis. The reported structures of the newly synthesised units correspond to formulas as it follows: K12[(UO2)2(SiW11O39)2(H2O)]·23H2O/Na12[Na2(UO2)2(PW9O34)2]·26H2O/Na5[Th(PW9O34)(H2O)8]·18H2O/(NH4)4[UO2(PMo12O40)2]·14H2O/Na4[UO2(P2W18O62)(H2O)4]·24H2O/Na2[Th(P2W18O62)(H2O)4]·24H2O and K2[UO2(Cr2Mo12O39)2(H2O)4]·23H2O.

Keywords:
Heteropolyoxometalates; polyoxotungstate; polyoxomolybdate; uranyl; thorium

Issue: 2008, Volume 59, Issue 8
Pages:
Publication date: 2008/9/9
https://doi.org/10.37358/RC.08.8.1920
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