HypoFluorous acid

• Formula: FHO
• Molecular weight: 36.0057
• IUPAC Standard InChI: InChI=1S/FHO/c1-2/h2H Copy

  
• IUPAC Standard InChIKey: AQYSYJUIMQTRMV-UHFFFAOYSA-N Copy
• CAS Registry Number: 14034-79-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Data at other public NIST sites:
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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

FO^- +  =

By formula: FO^- + H⁺ = HFO

Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

FO^- +  =

By formula: FO^- + H⁺ = HFO

Vibrational and/or electronic energy levels

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
J - Marilyn E. Jacox
Shim - Takehiko Shimanouchi

State:   ?

State:   X

Additional references: Jacox, 1994, page 51; Kim, Pearson, et al., 1972; Pearson and Kim, 1972; Burger, Pawelke, et al., 1989, 2

Notes

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Studier and Appleman, 1971
Studier, M.H.; Appleman, E.H., Hypofluorous Acid, J. Am. Chem. Soc., 1971, 93, 2349. [all data]

Gilles, Polak, et al., 1992
Gilles, M.K.; Polak, M.L.; Lineberger, W.C., Photoelectron Spectroscopy of the Halogen Oxide Anions FO-, ClO-, BrO-, IO-, OClO-, and OIO-, J. Chem. Phys., 1992, 96, 11, 8012, https://doi.org/10.1063/1.462352 . [all data]

Berkowitz, Dehmer, et al., 1973
Berkowitz, J.; Dehmer, J.L.; Appelman, E.H., Photoelectron spectrum of hypofluorous acid, HOF, Chem. Phys. Lett., 1973, 19, 334. [all data]

Berkowitz, Appelman, et al., 1973
Berkowitz, J.; Appelman, E.H.; Chupka, W.A., Photoionization of HOF with mass analysis, J. Chem. Phys., 1973, 58, 1950. [all data]

Elliott, 1983
Elliott, S., Atmos. Environ, 1983, 17, 759. [all data]

Appelman, Downs, et al., 1989
Appelman, E.H.; Downs, A.J.; Gardner, C.J., Matrix photochemistry of hypofluorous acid, HOF: oxygen atom transfer and other reactions, J. Phys. Chem., 1989, 93, 2, 598, https://doi.org/10.1021/j100339a021 . [all data]

Appelman and Kim, 1972
Appelman, E.H.; Kim, H., Gas-Phase Infrared Spectra of HOF and DOF, J. Chem. Phys., 1972, 57, 8, 3272, https://doi.org/10.1063/1.1678752 . [all data]

Burger, Pawelke, et al., 1989
Burger, H.; Pawelke, G.; Rahner, A.; Appelman, E.H.; Halonen, L., The high-resolution infrared spectrum of HOF: The interacting ν1 and 2ν2 + ν3 states, J. Mol. Spectrosc., 1989, 138, 2, 346, https://doi.org/10.1016/0022-2852(89)90003-9 . [all data]

Goleb, Claassen, et al., 1972
Goleb, J.A.; Claassen, H.H.; Studier, M.H.; Appelman, E.H., Spectrochim. Acta, 1972, 28A, 65. [all data]

Burger, Pawelke, et al., 1988
Burger, H.; Pawelke, G.; Rahner, A.; Appelman, E.H.; Mills, I.M., The infrared spectrum of the ν2 and ν3 bands of H16OF, H18OF, and D16OF, J. Mol. Spectrosc., 1988, 128, 1, 278, https://doi.org/10.1016/0022-2852(88)90224-X . [all data]

Noble and Pimentel, 1968
Noble, P.N.; Pimentel, G.C., Spectrochim. Acta, 1968, 24A, 7907. [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Kim, Pearson, et al., 1972
Kim, H.; Pearson, E.F.; Appelman, E.H., Millimeter-Wave Spectrum and Structure of Hypofluorous Acid: HOF and DOF, J. Chem. Phys., 1972, 56, 1, 1, https://doi.org/10.1063/1.1676830 . [all data]

Pearson and Kim, 1972
Pearson, E.F.; Kim, H., Centrifugal Distortion Analysis of Hypofluorous Acid: HOF and DOF, J. Chem. Phys., 1972, 57, 10, 4230, https://doi.org/10.1063/1.1678053 . [all data]

Burger, Pawelke, et al., 1989, 2
Burger, H.; Pawelke, G.; Sommer, S.; Rahner, A.; Appelman, E.H.; Mills, I.M., The high-resolution infrared spectrum of HOF near 2700 cm-1: The ground and 2ν2 states, J. Mol. Spectrosc., 1989, 136, 1, 197, https://doi.org/10.1016/0022-2852(89)90232-4 . [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization energy
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  Tfus	Fusion (melting) point
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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