## Abstract From the reaction of uranium hexafluoride UF~6~ with dry liquid ammonia, the [UF~7~(NH~3~)]^3β^ anion and the [UF~4~(NH~3~)~4~] molecule were isolated and identified for the first time. They are found in signalβgreen crystals of trisammonium monoammine heptafluorouranate(IV) ammonia (1:
Electron paramagnetic resonance (EPR) in UF4and UF3
β Scribed by M. Ya. Shcherbakova; S. P. Gabuda; Yu. V. Gagarinskii
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 1967
- Tongue
- English
- Weight
- 107 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0022-4766
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π SIMILAR VOLUMES
The 4f,, orbital electrons in condensates and ion bombarded powders of IJFa have been inves@sted aith XPS. In both uses the intensity at 382 eV decreases and that at 379 eV increnses. The intensities of the 5f electrons are ronstant. The peak at 379 eV is assigned to UF3.
The electron paramagnetic resonance spectrum of a powder of \(\mathrm{Pr}^{4+}\) in \(\mathrm{BaCeO}_{3}\) was measured at \(8.5 \mathrm{~K}\). A very large hyperfine interaction with the \({ }^{141} \mathrm{Pr}\) nucleus was observed. In addition to the allowed hyperfine transitions, forbidden hype