Iridium(V) fluoride explained

Iridium(V) fluoride, IrF₅, is a chemical compound of iridium and fluorine. A highly reactive yellow low melting solid, it has a tetrameric structure, Ir₄F₂₀, which contains octahedrally coordinated iridium atoms.^[1] This structure is shared with RuF₅ and OsF₅. It can be prepared by the controlled decomposition of IrF₆^[1] or the reduction of IrF₆ with silicon powder or H₂ in anhydrous HF.^{[2] [3]}

2IrF6 + H2 -> 2IrF5 + 2HF
4IrF6 + Si -> 4IrF5 + SiF4

See also

• Iridium(VI) fluoride
• Iridium(IV) fluoride

Notes and References

1. Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier
2. Reductive syntheses of transition metal fluoride compounds. Synthesis of rhenium, osmium, and iridium pentafluorides and tetrafluorides . Inorganic Chemistry. 14 . 5 . 1975 . 1111–1113 . 10.1021/ic50147a030 . Paine . Robert T. . Asprey . Larned B..
3. Chem. Commun. . 1965 . 252–253 . 10.1039/C19650000252 . Iridium pentafluoride . Neil. Bartlett . P. R.. Rao. Neil Bartlett (chemist). 12.