Bromyl fluoride

Bromyl fluoride

Names
Other names Bromine fluoride dioxide
Identifiers
CAS Number	22585-64-4  Y
3D model (JSmol)	Interactive image
ChemSpider	10323843
PubChem CID	15799711
CompTox Dashboard (EPA)	DTXSID20578418
InChI InChI=1S/BrFO2/c2-1(3)4 Key: MQCDGGKZTTYBRJ-UHFFFAOYSA-N
SMILES O=Br(=O)F
Properties
Chemical formula	BrO2F
Molar mass	130.900 g·mol−1
Appearance	colorless liquid
Melting point	−9 °C (16 °F; 264 K)
Solubility in water	reacts with water
Related compounds
Related compounds	Chloryl fluoride Iodyl fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

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

Synthesis

• A reaction of K⁺[BrF₄O]⁻ (potassium tetrafluorooxobromate(V)) with HF. ^[3]

• Also, reactions of BrF₅ with IO₂F, IOF₃, and I₂O₅ produce BrO₂F. ^[3]

• Hydrolysis of bromine pentafluoride at low temperatures:

BrF₅ + 2 H₂O → BrO₂F + 4 HF (1).

Physical properties

The compound forms a colorless volatile liquid that decomposes at temperatures above 10 °C. It is highly reactive and unstable, ^[4] and corrodes glass at room temperature due the formation of HF upon reaction with water (1).

Chemical properties

• Decomposes when heated: ^[5]

3 BrO₂F → BrF₃ + Br₂ + 3 O₂

• Reacts violently with water: ^[6]

BrO₂F + H₂O → HBrO₃ + HF

• Reacts with alkalis: ^[7]

BrO₂F + 2 NaOH → 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.
2. Baran, Enrique J. (January 1976). "Vibrational Properties of Bromyl Fluoride". Spectroscopy Letters . 9 (6): 323–327. Bibcode:1976SpecL...9..323B. doi:10.1080/00387017608067443. ISSN   0038-7010.
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.
4. Seppelt, Konrad (19 December 2019). "Reactions of Bromine Fluoride Dioxide, BrO₂F, for the Generation of the Mixed-Valent Bromine Oxygen Cations Br₃O₄⁺ and Br₃O₆⁺". Angewandte Chemie International Edition . 58 (52): 18928–18930. Bibcode:2019ACIE...5818928S. doi:10.1002/anie.201912271. ISSN   1433-7851. PMC   6973041 . PMID   31622009.
5. Gillespie, Ronald J.; Spekkens, Paul H. (1977). "Bromyl fluoride and bromosyl trifluoride: preparation and chemical and spectroscopic properties". Journal of the Chemical Society, Dalton Transactions (16): 1539. doi:10.1039/dt9770001539. ISSN   0300-9246.
6. Sloth, Eric N.; Stein, Lawrence; Williams, Clayton W. (1969-01-01). "Mass spectra of hydrolyzed bromine fluorides". The Journal of Physical Chemistry. 73 (1): 278–280. Bibcode:1969JPhCh..73..278S. doi:10.1021/j100721a050. ISSN   0022-3654.
7. Advanced inorganic chemistry (6th ed.). New York: J. Wiley. 1999. ISBN   978-0-471-19957-1.