Inorganic Chemistry p. 183 - 186 (1966)
Update date:2022-08-12
Topics:
Selig, Henry
Xenon oxide tetrafluoride bears a strong resemblance to the halogen fluorides both in physical properties and chemical behavior. A number of physical properties of XeOF4 have been measured. Xenon oxide tetrafluoride is a clear, colorless liquid freezing at -46.2°. Its electrical conductivity at 24° is 1.03 × 10-5 ohm-1 cm.-1 and its dielectric constant is 24.6 at 24°. It is miscible with anhydrous HF, but its conductivity is not enhanced in such a solution. The addition of CsF or RbF to XeOF4 increases its conductivity markedly. Xenon oxide tetrafluoride forms a series of addition compounds with the heavier alkali fluorides. The following complexes have been isolated: CsF·XeOF4, 3RbF-2XeOF4 and 3KF·-XeOF4. No reaction occurs with NaF. Thermogravimetric studies show that a number of intermediates are formed before final decomposition to the alkali fluorides. Xenon oxide tetrafluoride reacts with SbF5 to form a complex of composition XeOF4· 2SbF5. A reaction also occurs with AsF5 at -78°, but the complex is unstable at room temperature.
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(1970)
