A fluorooxoiodate or fluoroiodate is a chemical compound or ion derived from iodate, by substituting some of the oxygen by fluorine.
They are under investigation as materials for non-linear optics, such as for generating ultraviolet light from visible or infrared lasers.
They are distinct from the fluoride iodates which are mixed anion compounds that do not have fluorine-iodine bonds.
[1] Fluoroiodates are transparent in visible, longer wave ultraviolet and some of the infrared electromagnetic bands.
The ∠OIF angle is close to 90° and the oxygen atoms ∠OFO are at about 102°,[2] so they resemble an octahedral arrangement, with two adjacent positions deleted.