Molybdenum(V) fluoride is an

inorganic compound An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorgan ...

with the formula MoF₅. It is a hygroscopic yellow solid. Like most pentafluorides, it exists as a tetramer.

Production

Molybdenum(V) fluoride is produced by the reaction of

molybdenum Molybdenum is a chemical element; it has Symbol (chemistry), symbol Mo (from Neo-Latin ''molybdaenum'') and atomic number 42. The name derived from Ancient Greek ', meaning lead, since its ores were confused with lead ores. Molybdenum minerals hav ...

and molybdenum hexafluoride: :Mo + 5 MoF₆ → 6 MoF₅ It can also be prepared by the reduction of molybdenum hexafluoride with phosphorus trifluoride or

tungsten hexacarbonyl Tungsten hexacarbonyl (also called tungsten carbonyl) is an organometallic compound with the formula W(CO)6. This complex gave rise to the first example of a dihydrogen complex.Kubas, G. J., Metal Dihydrogen and σ-Bond Complexes, Kluwer Academic ...

, or by the oxidation of elemental molybdenum with fluorine at 900 °C. About 165 °C, it disproportionates to the tetra- and hexafluoride: :2 MoF₅ → MoF₄ + MoF₆

References

Fluorides Molybdenum halides Molybdenum(V) compounds {{Inorganic-compound-stub