Electron affinity of UF/sub 6/. Final report, March 1, 1976--June 30, 1977. [MoF/sub 6/,WF/sub 6/]
Ionization reactions are observed in crossed molecular beams, usually of thermal energy, alkalis and MoF/sub 6/, WF/sub 6/ and UF/sub 6/. Previous studies have indicated large electron affinities for these hexafluorides, and this is confirmed here. Ionization at thermal energies proceeds with the alkali dimers, A/sub 2/, for all three hexafluorides, but with alkali atoms, A, only for UF/sub 6/. Several ionization paths are observed, allowing the deduction of molecular energies. A few experiments are done with eV-range beams. Lower limits for the elecron affinities are 4.5, 3.3, 4.9, 4.3 and 1.9 eV for MoF/sub 6/, MoF/sub 5/, WF/sub 6/, UF/sub 6/ and UF/sub 5/, respectively. Possible mechanisms are discussed.
- Research Organization:
- Wayne State Univ., Detroit, MI (USA). Research Inst. for Engineering Sciences
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- DOE Contract Number:
- EY-76-S-02-2850
- OSTI ID:
- 7104328
- Report Number(s):
- COO--2850-2
- Country of Publication:
- United States
- Language:
- English
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Ionization reactions of metal hexafluorides with alkali atoms and dimers. [Thermal and epithermal energies]
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
AFFINITY
ALKALI METALS
ELECTRONEGATIVITY
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IONIZATION
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM FLUORIDES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN FLUORIDES
URANIUM COMPOUNDS
URANIUM FLUORIDES
URANIUM HEXAFLUORIDE
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
AFFINITY
ALKALI METALS
ELECTRONEGATIVITY
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IONIZATION
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM FLUORIDES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN FLUORIDES
URANIUM COMPOUNDS
URANIUM FLUORIDES
URANIUM HEXAFLUORIDE