Hypobromous acid

• Formula: BrHO
• Molecular weight: 96.911
• IUPAC Standard InChI: InChI=1S/BrHO/c1-2/h2H Copy

  
• IUPAC Standard InChIKey: CUILPNURFADTPE-UHFFFAOYSA-N Copy
• CAS Registry Number: 13517-11-8
• 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:
  • Reaction thermochemistry data
  • Henry's Law data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
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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

BrO^- +  =

By formula: BrO^- + H⁺ = HBrO

Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

k_H(T) = k°_H exp(d(ln(k_H))/d(1/T) ((1/T) - 1/(298.15 K)))
k°_H = Henry's law constant for solubility in water at 298.15 K (mol/(kg*bar))
d(ln(k_H))/d(1/T) = Temperature dependence constant (K)

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 compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman

Ionization energy determinations

Appearance energy determinations

De-protonation reactions

BrO^- +  =

By formula: BrO^- + H⁺ = HBrO

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 by: Marilyn E. Jacox

State:   ?

State:   ?

State:   ?

State:   X

Additional references: Jacox, 1994, page 52; Jacox, 1998, page 156; Jacox, 2003, page 45; Koga, Takeo, et al., 1989; Tan and Goh, 2000; Cohen, Muller, et al., 2010

Notes

References

Go To: Top, Reaction thermochemistry data, Henry's Law data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, NIST Free Links, Notes

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

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]

Ruscic and Berkowitz, 1994
Ruscic, B.; Berkowitz, J., Threshold photoelectron spectrum of HOBr, J. Chem. Phys., 1994, 101, 9215. [all data]

Ruscic and Berkowitz, 1994, 2
Ruscic, B.; Berkowitz, J., Experimental determination of Hf(HOBr) and ionization potentials (HOBr): Implications for corresponding properties of HOI, J. Chem. Phys., 1994, 101, 7795. [all data]

Monks, Stief, et al., 1994
Monks, P.S.; Stief, L.J.; Krauss, M.; Kuo, S.C.; Klemm, R.B., A discharge flow-photoionization mass spectrometric study of HOBr (X<1>A'): Photoion yield spectrum, ionization energy, and thermochemistry, J. Chem. Phys., 1994, 100, 1902. [all data]

Orlando and Burkholder, 1995
Orlando, J.J.; Burkholder, J.B., Gas-Phase UV/Visible Absorption Spectra of HOBr and Br2O, J. Phys. Chem., 1995, 99, 4, 1143, https://doi.org/10.1021/j100004a013 . [all data]

Benter, Feldmann, et al., 1995
Benter, T.; Feldmann, C.; Kirchner, U.; Schmidt, M.; Schmidt, S.; Schindler, R.N., Ber. Bunsenges. Phys. Chem., 1995, 99, 1144. [all data]

Rattigan, Lary, et al., 1996
Rattigan, O.V.; Lary, D.J.; Jones, R.L.; Cox, R.A., UV-visible absorption cross sections of gaseous Br, J. Geophys. Res. D, 1996, 101, D17, 23021, https://doi.org/10.1029/96JD02017 . [all data]

Ingham, Bauer, et al., 1998
Ingham, T.; Bauer, D.; Landgraf, J.; Crowley, J.N., Ultraviolet-Visible Absorption Cross Sections of Gaseous HOBr, J. Phys. Chem. A, 1998, 102, 19, 3293, https://doi.org/10.1021/jp980272c . [all data]

Barnes, Lock, et al., 1996
Barnes, R.J.; Lock, M.; Coleman, J.; Sinha, A., Observation of a New Absorption Band of HOBr and Its Atmospheric Implications, J. Phys. Chem., 1996, 100, 2, 453, https://doi.org/10.1021/jp952445t . [all data]

Barnes, Bastian, et al., 1989
Barnes, I.; Bastian, V.; Becker, K.H.; Overath, R.; Zhu, T., Rate constants for the reactions of Br atoms with a series of alkanes, alkenes, and alkynes in the presence of O2, Int. J. Chem. Kinet., 1989, 21, 7, 499, https://doi.org/10.1002/kin.550210703 . [all data]

Cohen, McRae, et al., 1995
Cohen, E.A.; McRae, G.A.; Tan, T.L.; Friedl, R.R.; Johns, J.W.C.; Noel, M., The ν1 Band of HOBr, J. Mol. Spectrosc., 1995, 173, 1, 55, https://doi.org/10.1006/jmsp.1995.1218 . [all data]

Schwager and Arkell, 1967
Schwager, I.; Arkell, A., None, J. Am. Chem. Soc., 1967, 89, 24, 6006, https://doi.org/10.1021/ja01000a002 . [all data]

McRae and Cohen, 1990
McRae, G.A.; Cohen, E.A., The ν2 band of HOBr, J. Mol. Spectrosc., 1990, 139, 2, 369, https://doi.org/10.1016/0022-2852(90)90074-Z . [all data]

Akai, Wakamatsu, et al., 2010
Akai, N.; Wakamatsu, D.; Yoshinobu, T.; Kawai, A.; Shibuya, K., Matrix-isolation infrared spectra of HOOBr and HOBrO produced upon VUV light irradiation of HBr/O2/Ne system, Chem. Phys. Lett., 2010, 499, 1-3, 117, https://doi.org/10.1016/j.cplett.2010.09.039 . [all data]

Barnes, Becker, et al., 1992
Barnes, I.; Becker, K.H.; Starcke, J., FTIR spectroscopic observation of gaseous HOI, Chem. Phys. Lett., 1992, 196, 6, 578, https://doi.org/10.1016/0009-2614(92)85997-O . [all data]

Orphal, Kou, et al., 2003
Orphal, J.; Kou, Q.; Kwabia Tchana, F.; Pirali, O.; Flaud, J.-M., The ν3 bands of HOBr around 16μm measured by high-resolution Fourier-transform spectroscopy, J. Mol. Spectrosc., 2003, 221, 2, 239, https://doi.org/10.1016/S0022-2852(03)00222-4 . [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]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Koga, Takeo, et al., 1989
Koga, Y.; Takeo, H.; Kondo, S.; Sugie, M.; Matsumura, C.; McRae, G.A.; Cohen, E.A., The rotational spectra, molecular structure, dipole moment, and hyperfine constants of HOBr and DOBr, J. Mol. Spectrosc., 1989, 138, 2, 467, https://doi.org/10.1016/0022-2852(89)90013-1 . [all data]

Tan and Goh, 2000
Tan, T.L.; Goh, K.L., The High-Resolution FTIR Spectrum of the ν1 Band of DOBr, J. Mol. Spectrosc., 2000, 199, 1, 87, https://doi.org/10.1006/jmsp.1999.7976 . [all data]

Cohen, Muller, et al., 2010
Cohen, E.A.; Muller, H.S.P.; Tan, T.L.; McRae, G.A., High resolution spectroscopy of DOBr and molecular properties of hypobromous acid, J. Mol. Spectrosc., 2010, 262, 1, 30, https://doi.org/10.1016/j.jms.2010.04.009 . [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  d(ln(kH))/d(1/T)	Temperature dependence parameter for Henry's Law constant
  k°H	Henry's Law constant at 298.15K
  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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