HypoFluorous acid

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Gas phase thermochemistry data

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes

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

Quantity Value Units Method Reference Comment
Δfgas-23.50kcal/molReviewChase, 1998Data last reviewed in December, 1972
Quantity Value Units Method Reference Comment
gas,1 bar54.199cal/mol*KReviewChase, 1998Data last reviewed in December, 1972

Gas Phase Heat Capacity (Shomate Equation)

Cp° = 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
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 298. to 1300.1300. to 6000.
A 5.92441011.90390
B 10.763300.992132
C -7.177912-0.183284
D 1.9448210.011844
E 0.003190-1.471071
F -25.67469-30.06790
G 58.4791164.68160
H -23.50000-23.50000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1972 Data last reviewed in December, 1972

Phase change data

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References, Notes

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

Quantity Value Units Method Reference Comment
Tfus156.KN/AStudier and Appleman, 1971Uncertainty assigned by TRC = 2. K

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References, Notes

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- + Hydrogen cation = HypoFluorous acid

By formula: FO- + H+ = HFO

Quantity Value Units Method Reference Comment
Δr362.5 ± 3.3kcal/molAcidGilles, Polak, et al., 1992gas phase
Quantity Value Units Method Reference Comment
Δr356.1 ± 3.6kcal/molH-TSGilles, Polak, et al., 1992gas phase

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, References, Notes

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

Quantity Value Units Method Reference Comment
IE (evaluated)12.71 ± 0.01eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
12.69 ± 0.03PEBerkowitz, Dehmer, et al., 1973LLK
12.71 ± 0.01PIBerkowitz, Appelman, et al., 1973LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
HO+15.07FPIBerkowitz, Appelman, et al., 1973LLK
O+14.34HFPIBerkowitz, Appelman, et al., 1973LLK

De-protonation reactions

FO- + Hydrogen cation = HypoFluorous acid

By formula: FO- + H+ = HFO

Quantity Value Units Method Reference Comment
Δr362.5 ± 3.3kcal/molAcidGilles, Polak, et al., 1992gas phase; B
Quantity Value Units Method Reference Comment
Δr356.1 ± 3.6kcal/molH-TSGilles, Polak, et al., 1992gas phase; B

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, 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]


Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References