Iron tetrafluoride

Iron tetrafluoride is a binary inorganic compound with a chemical formula of FeF4.

History
Iron tetrafluoride was initially observed in 2003 via mass spectrometry and Fourier-transform infrared spectroscopy.

Preparation
Iron tetrafluoride can be prepared by reaction of iron atoms with elemental F2 in excess neon and argon at 4 K:


 * Fe + 2F2 -> FeF4

Physical properties
Iron tetrafluoride is assumed to have tetrahedral or square planar structure. It has been calculated to be stable in the gas phase.