User:Tetracube/Tetrafluorophosphonium

Tetrafluorophosphonium is a polyatomic ion with chemical formula PF$+ 4$. It is the phosphorus analogue of the tetrafluoroammonium ion and the fluorine analogue of phosphine. It has tetrahedral molecular geometry.

Synthesis
Phosphorus pentafluoride forms an adduct with antimony pentafluoride characterised by Raman spectroscopy as [PF$+ 4$][$+ 4$].