A fluorooxoiodate or fluoroiodate is a chemical compound or ion derived from iodate, by substituting some of the oxygen by fluorine. They have iodine in the +5 oxidation state. The iodine atoms have a stereochemically active lone-pair of electrons. Many are non-centrosymmetric, and are second harmonic generators (SHG) of intense light shining through them. They are under investigation as materials for non-linear optics, such as for generating ultraviolet light from visible or infrared lasers.[1]
Different ions include [IOF4]−, [IO2F2]−, [IO3F]2−, and [I2O5F2]2−.
They are distinct from the fluoride iodates which are mixed anion compounds that do not have fluorine-iodine bonds.[1]
- ^ a b Gao, Dong; Wu, Hongping; Hu, Zhanggui; Wang, Jiyang; Wu, Yicheng; Yu, Hongwei (January 2023). "Recent advances in F-containing iodate nonlinear optical materials". Chinese Journal of Structural Chemistry. 42 (1): 100014. doi:10.1016/j.cjsc.2023.100014. S2CID 255888212.
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