Iridium(V) fluoride, IrF₅, is a chemical compound of

iridium Iridium is a chemical element with the symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, it is considered the second-densest naturally occurring metal (after osmium) with a density of ...

and

fluorine Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas. As the most electronegative reactive element, it is extremely reacti ...

. A highly reactive yellow low melting solid, it has a tetrameric structure, Ir₄F₂₀, which contains octahedrally coordinated iridium atoms.Egon Wiberg, Arnold Frederick Holleman (2001) ''Inorganic Chemistry'', Elsevier This structure is shared with RuF₅ and OsF₅. It can be prepared by the controlled decomposition of IrF₆ or the reduction of IrF₆ with

silicon Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic tab ...

powder or H₂ in anhydrous HF. 2IrF6 + H2 -> 2IrF5 + 2HF
4IrF6 + Si -> 4IrF5 + SiF4

References

{{Fluorides Iridium compounds Fluorides Platinum group halides

See also

References