Question

Antimony pentafluoride, SbF5, reacts with XeF4 and XeF6 to form ionic compounds, XeF_3^+ SbF_6^- and XeF_5^+ SbF_6^-. Describe the geometries of the cations and anion in these two compounds.

Answer 1

Cations are [XeF₃]⁺ & [XeF₅]⁺...

Hence first geometry of these two are...

The geometry of [XeF₃]⁺ ion is bent T-shaped.

Because the central Xe atom has 2 lone pairs and 3 bond pairs of electrons. The electron pair geometry is trigonal bipyramidal.

The geometry of [XeF₅]⁺ ​ ion is square pyramidal. the central Xe atom has 1 lone pair and 5 bond pairs of electrons. The electron pair geometry is octahedral.

Anion is common ,i.e [SbF₆]^- , and Shape of this Anion is OCTAHEDRAL.