Bromyl fluoride

Bromyl fluoride is an inorganic compound of bromine, fluorine, and oxygen with the chemical formula BrO2F.[1][2]

Bromyl fluoride
Names
Other names
Bromine fluoride dioxide
Identifiers
3D model (JSmol)
  • InChI=1S/BrFO2/c2-1(3)4
    Key: MQCDGGKZTTYBRJ-UHFFFAOYSA-N
  • O=Br(=O)F
Properties
BrFO2
Molar mass 130.900 g·mol−1
Appearance colorless liquid
Melting point −9 °C (16 °F; 264 K)
reacts with water
Related compounds
Related compounds
 Iodyl fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Synthesis
  • A reaction of K[BrF4O] with HF.[3]
  • Also, reactions of BrF5 with IO2F, IOF3, and I2O5 produce BrO2F.[3]
  • Hydrolysis of bromine pentafluoride at low temperatures:
BrF5 + 2H2O → BrO2F + 4HF

Physical properties

The compound forms a colorless volatile liquid that decomposes at temperatures above 10°C. Corrodes glass at room temperature. Highly reactive and unstable.[4]

Chemical properties
  • Decomposes when heated:
3BrO2F → BrF3 + Br2 + 3O2
  • Reacts violently with water (with an explosion):
BrO2F + H2O → HBrO3 + HF
  • Reacts with alkalis:
BrO2F + 2NaOH → NaBrO3 + NaF + H2O

References
  1. Christe, Karl O.; Curtis, E. C.; Jacob, Eberhard (1 October 1978). "Bromyl fluoride. Vibrational spectra, force field, and thermodynamic properties". Inorganic Chemistry. 17 (10): 2744–2749. doi:10.1021/ic50188a011. ISSN 0020-1669. Retrieved 5 June 2023.
  2. Baran, Enrique J. (January 1976). "Vibrational Properties of Bromyl Fluoride". Spectroscopy Letters. 9 (6): 323–327. doi:10.1080/00387017608067443. ISSN 0038-7010. Retrieved 5 June 2023.
  3. Gillespie, Ronald J.; Spekkens, Paul H. (1 January 1977). "Bromyl fluoride and bromosyl trifluoride: preparation and chemical and spectroscopic properties". Journal of the Chemical Society, Dalton Transactions (16): 1539–1546. doi:10.1039/DT9770001539. ISSN 1364-5447. Retrieved 5 June 2023.
  4. Seppelt, Konrad (19 December 2019). "Reactions of Bromine Fluoride Dioxide, BrO 2 F, for the Generation of the Mixed‐Valent Bromine Oxygen Cations Br 3 O 4 + and Br 3 O 6 +". Angewandte Chemie International Edition. 58 (52): 18928–18930. doi:10.1002/anie.201912271. ISSN 1433-7851. PMC 6973041. Retrieved 5 June 2023.
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