Stéphanie M De Sio

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The speciation of protactinium(V) in hydrofluoric acid (HF) solutions was studied using X-ray absorption spectroscopy. Extended X-ray absorption fine structure measurements were performed on an aqueous solution of 0.05 M protactinium(V) with various HF concentrations ranging from 0.5 to 27 M in order to probe the protactinium coordination sphere with(More)
Seven protactinium(V) fluoride compounds have been synthesized, and their crystal structures and Raman spectra are reported. (NH4)2PaF7, K2PaF7, Rb2PaF7, and Cs2PaF7 were found to crystallize in the monoclinic space group P21/c for the ammonium compound and C2/c for the K(+)-, Rb(+)-, and Cs(+)-containing compounds, with nine-coordinate Pa forming infinite(More)
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