Xenon Tetrafluoride: Crystal Structure.

Area of Science:

• Inorganic Chemistry
• Solid-State Chemistry
• Crystallography

Background:

• Xenon tetrafluoride (XeF4) is a noble gas compound with unique chemical properties.
• Understanding the molecular geometry and bonding in XeF4 is crucial for predicting its reactivity.

Purpose of the Study:

• To determine the precise three-dimensional structure of xenon tetrafluoride in the solid state.
• To elucidate the molecular geometry and symmetry of XeF4.

Main Methods:

• Three-dimensional X-ray diffraction analysis was employed.
• Crystallographic data was collected and refined to determine atomic positions.

Main Results:

• The xenon tetrafluoride molecule in the solid state adopts a planar configuration.
• The approximate symmetry of the molecule was identified as D(4h).
• The average xenon-fluorine bond distance was measured as 1.92 ± 0.03 Å.

Conclusions:

• The solid-state structure confirms the planar geometry of xenon tetrafluoride.
• The D(4h) symmetry is consistent with a square planar arrangement around the central xenon atom.