Molybdenum(V) fluoride is an

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

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 with the symbol Mo and atomic number 42 which is located in period 5 and group 6. The name is from Neo-Latin ''molybdaenum'', which is based on Ancient Greek ', meaning lead, since its ores were confused with lea ...

and

molybdenum hexafluoride Molybdenum hexafluoride, also molybdenum(VI) fluoride, is the inorganic compound with the formula MoF6. It is the highest fluoride of molybdenum. It is a colourless solid and melts just below room temperature and boils in 34 °C. It is on ...

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

phosphorus trifluoride Phosphorus trifluoride (formula P F3), is a colorless and odorless gas. It is highly toxic and reacts slowly with water. Its main use is as a ligand in metal complexes. As a ligand, it parallels carbon monoxide in metal carbonyls, and indeed ...

tungsten hexacarbonyl Tungsten hexacarbonyl (also called tungsten carbonyl) is the chemical 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/Plenu ...

, 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 {{Inorganic-compound-stub