Molybdenum(V) fluoride
# Molybdenum(V) fluoride

Molybdenum(V) fluoride is an inorganic compound with the formula $MoF_5.$ 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 and molybdenum hexafluoride:

    Mo + 5 $MoF_6$ → 6 $MoF_5$

It can also be prepared by the reduction of molybdenum hexafluoride with phosphorus trifluoride or tungsten hexacarbonyl, or by the oxidation of elemental molybdenum with fluorine at 900 °C.

About 165 °C, it disproportionates to the tetra- and hexafluoride:

    2 $MoF_5$ → $MoF_4$ + $MoF_6$
