Chromium oxytetrafluoride

Chromium oxytetrafluoride is the inorganic compound with the formula CrOF4. It is a purple, volatile, diamagnetic solid. The compound is classified as an oxyfluoride.

Synthesis
It can be prepared by fluorination of chromyl fluoride with krypton difluoride:
 * CrO2F2 + KrF2  ->  CrOF4  +  0.5 O2  +  Kr

The compound serves as a weak Lewis base with noble gas difluorides. It also binds fluoride to give the pentafluoride.