Hypofluorous acid

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Hypofluorous acid
Identifiers
InChI InChI=1/FHO/c1-2/h2H
InChIKey AQYSYJUIMQTRMV-UHFFFAOYAN
Standard InChI InChI=1S/FHO/c1-2/h2H
Standard InChIKey AQYSYJUIMQTRMV-UHFFFAOYSA-N
CAS number [14034-79-8]
ChemSpider 109936
Properties[1]
Chemical formula HOF
Molar mass 36.006 g mol−1
Appearance see text
Melting point

−117 °C

Boiling point

< 0 °C

Solubility in water reacts
Structure[2]
Molecular geometry bent: H–O = 96.4(10) pm, O–F = 144.2(1) pm, H–O–F = 97.2(6)°
Thermochemistry[3]
Std enthalpy of formation ΔfHo298 −98.32 kJ mol−1
Standard molar entropy So298 226.77 J K−1 mol−1
Related compounds
Other compounds Hypochlorous acid
Hypobromous acid
Hypoiodous acid
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Hypofluorous acid or oxygen fluoride hydride, HOF, is an unstable compound arising from the reaction of gaseous fluorine with water. It was first isolated in weighable quantities in 1971.[4]

Notes and references

Notes

References

  1. Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; p 1003. ISBN 0-08-022057-6.
  2. Kim, Hyunyong; Pearson, Edwin F.; Appelman, Evan H. Millimeter‐Wave Spectrum and Structure of Hypofluorous Acid: HOF and DOF. J. Chem. Phys. 1972, 56 (1), 1–3. DOI: 10.1063/1.1676830.
  3. Hypofluorous acid. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3DInChI=1S/FHO/c1-2/h2H>. (accessed 17 September 2010).
  4. Studier, Martin H.; Appleman, Evan H. Hypofluorous Acid. J. Am. Chem. Soc. 1971, 93 (9), 2349–51. DOI: 10.1021/ja00738a059.

External links

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