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| Names | |
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IUPAC name
Fluoro(dioxo)-λ5-iodane
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| Identifiers | |
3D model (
JSmol)
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| ChemSpider | |
PubChem
CID
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CompTox Dashboard (
EPA)
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| Properties | |
| FIO2 | |
| Molar mass | 177.901 g·mol−1 |
| Appearance | colorless crystals |
| Density | 4.982 g/cm3 |
| Melting point | 200 °C (392 °F; 473 K) |
| Reacts with water | |
| Related compounds | |
Related compounds
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Iodosyl pentafluoride Iodosyl trifluoride Periodyl fluoride Iodyl trifluoride |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
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Iodyl fluoride is an inorganic compound of iodine, fluorine, and oxygen with the chemical formula IO2F. The compound was initially synthesized in 1951. [1]
Synthesis
- Iodyl fluoride can be decomposed by iodosyl trifluoride heated to 110 °C in nitrogen. Since this reaction is reversible, the reaction requires constant removal of iodine pentafluoride. [1]
- 2IOF3 ⇌ IO2F + IF5
- Dissolving the anhydride of iodic acid, I2O5, in anhydrous hydrofluoric acid. [2]
- I2O5 + HF → IO2F + HIO3
Physical properties
Iodyl fluoride forms colorless crystals of orthorhombic system. [3] Reacts with water. [4]
Chemical properties
Iodyl fluoride is stable in dry air, but slowly hydrolyzes to iodic and hydrofluoric acids in moisture. [1]
- IO2F + H2O → HIO3 + HF
The compound reacts with strong fluorinating agents such as bromine trifluoride and selenium tetrafluoride to form iodine pentafluoride. Iodyl fluoride can be reduced to elemental iodine by pure hydrogen peroxide. [5] [6]
- 3IO2F + 4BrF3 → 3IF5 + 2Br2 + 3O2
- IO2F + 2SeF4 → IF5 + 2SeOF2
References
- ^ a b c Aynsley, E. E.; Nichols, R.; Robinson, P. L. (1 January 1953). "126. Reactions of iodine pentafluoride with inorganic substances. Iodine oxytrifluoride and iodyl fluoride". Journal of the Chemical Society: 623–626. doi: 10.1039/JR9530000623. ISSN 0368-1769. Retrieved 24 May 2023.
- ^ Wiberg, Egon; Wiberg, Nils (2001). Inorganic Chemistry. Academic Press. p. 468. ISBN 978-0-12-352651-9. Retrieved 24 May 2023.
- ^ Minkwitz, Rolf; Berkei, Michael; Ludwig, Ralf (1 December 2001). "Crystal Structure of IO2F". Inorganic Chemistry. 40 (25): 6493–6495. doi: 10.1021/ic0105462. ISSN 0020-1669. PMID 11720506. Retrieved 24 May 2023.
- ^ Haynes, William M. (4 June 2014). CRC Handbook of Chemistry and Physics. CRC Press. p. 4-67. ISBN 978-1-4822-0868-9. Retrieved 24 May 2023.
- ^ Schmeisser, M.; Brändle, K. (1 January 1963). "Oxides and Oxyfluorides of the Halogens". Advances in Inorganic Chemistry and Radiochemistry. 5. Academic Press: 41–89. doi: 10.1016/S0065-2792(08)60152-1. ISBN 9780120236053. Retrieved 24 May 2023.
- ^ Advances in Inorganic Chemistry and Radiochemistry. Academic Press. 1 January 1963. ISBN 978-0-08-057854-5. Retrieved 24 May 2023.