Synthesis and characterization of a new uranium(V) compound: H/sub 3/O/sup +/UF/sub 6//sup -/
Journal Article
·
· Inorg. Chem.; (United States)
The reaction of equimolar amounts of UF/sub 5/ and H/sub 2/O in hydrogen fluoride results in the partial dissolution of UF/sub 5/, yielding a blue-green solution from which the new salt oxonium hexafluorouranate(V)(H/sub 3/O/sup +/UF/sub 6//sup -/) could be isolated as a green crystalline solid. Calorimetric measurements showed H/sub 3/O/sup +/UF/sub 6//sup -/ to decompose at about 68/sup 0/C and its heat of formation to be equal to -628 +- 2 kcal mol. Its ionic nature in the solid state and in HF solutions was demonstrated from vibrational and electronic spectra. The electronic spectrum is closely similar to those of LiUF/sub 6/, NaUF/sub 6/, and CsUF/sub 6/ and differs from those of RbUF/sub 6/ and KUF/sub 6/. This adduct shows a strong ESR signal, with g = -0.78 +- 0.10, characteristic of UF/sub 6//sup -/ salts. Based on its x-ray powder diffraction pattern, H/sub 3/O/sup +/UF/sub 6//sup -/ is cubic with a = 5.2229 +- 0.0005 A.
- Research Organization:
- CEN de Saclay, Gif-sur-Yvette, France
- OSTI ID:
- 7234442
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 15:10; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Technical Report
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Tue May 01 00:00:00 EDT 1962
·
OSTI ID:4762950
Synthesis and characterization of uranium(V) fluoride fluorosulfates and uranium(V) oxyfluorosulfate: UF/sub 3/(SO/sub 3/F)/sub 2/, UF(SO/sub 3/F)/sub 4/, and UO(SO/sub 3/F)/sub 3/
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Sat Jul 01 00:00:00 EDT 1978
· Inorg. Chem.; (United States)
·
OSTI ID:6883462
Aspects of uranium chemistry pertaining to UF{sub 6} cylinder handling
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Mon Dec 30 23:00:00 EST 1991
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OSTI ID:139610
Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
CHARGED PARTICLES
CHEMICAL PREPARATION
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIFFRACTION
ELECTRON SPIN RESONANCE
EMISSION SPECTRA
ENTHALPY
FLUORIDES
FLUORINE COMPOUNDS
FORMATION HEAT
HALIDES
HALOGEN COMPOUNDS
INFRARED SPECTRA
IONS
MAGNETIC RESONANCE
MOLECULAR IONS
OXONIUM IONS
PHYSICAL PROPERTIES
RAMAN SPECTRA
REACTION HEAT
RESONANCE
SCATTERING
SPECTRA
SYNTHESIS
THERMODYNAMIC PROPERTIES
URANIUM COMPOUNDS
URANIUM FLUORIDES
X-RAY DIFFRACTION
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
CHARGED PARTICLES
CHEMICAL PREPARATION
COHERENT SCATTERING
COMPARATIVE EVALUATIONS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIFFRACTION
ELECTRON SPIN RESONANCE
EMISSION SPECTRA
ENTHALPY
FLUORIDES
FLUORINE COMPOUNDS
FORMATION HEAT
HALIDES
HALOGEN COMPOUNDS
INFRARED SPECTRA
IONS
MAGNETIC RESONANCE
MOLECULAR IONS
OXONIUM IONS
PHYSICAL PROPERTIES
RAMAN SPECTRA
REACTION HEAT
RESONANCE
SCATTERING
SPECTRA
SYNTHESIS
THERMODYNAMIC PROPERTIES
URANIUM COMPOUNDS
URANIUM FLUORIDES
X-RAY DIFFRACTION