Add time:09/09/2019         Source:sciencedirect.com

The reactions of some hydrazinium fluorouranates and some ammonium fluorouranates with excess xenon difluoride or XENON HEXAFLUORIDE (cas 13693-09-9) were studied.The reactions between hydrazinium fluorouranates and xenon difluoride proceed via ammonium fluorouranates to binary metal fluorides, with the uranium in the higher oxidation state than in the starting materials, in contrast, reactions between ammonium fluorouranates and xenon difluoride proceed with oxidation of only the metal. In this system we succeeded in synthesizing a new uranium compound, (NH4)4UF10. Analysis of its vibrational spectra indicates a coordination higher than 8, hitherto unobserved for monomeric fluorouranates.The reactions with xenon hexafluoride are more complex, giving in the case of hydrazinium fluorouranates either binary metal fluorides or XeF+5 complexes, and in the case of ammonium fluorouranates, the end products contain XeF+5 and NH+4 cations.

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