Oxygen

• Formula: O₂
• Molecular weight: 31.9988
• IUPAC Standard InChI: InChI=1S/O2/c1-2 Copy

  
• IUPAC Standard InChIKey: MYMOFIZGZYHOMD-UHFFFAOYSA-N Copy
• CAS Registry Number: 7782-44-7
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Molecular oxygen; Oxygen molecule; Pure oxygen; O2; Liquid oxygen; UN 1072; UN 1073; Dioxygen
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Reaction thermochemistry data (reactions 51 to 70)
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data: reactions 1 to 50
  • Henry's Law data
  • Gas phase ion energetics data
  • Ion clustering data
  • Mass spectrum (electron ionization)
  • Constants of diatomic molecules
  • Fluid Properties
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
• Options:
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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Reaction thermochemistry data

Go To: Top, References, Notes

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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
B - John E. Bartmess
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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.

Reactions 51 to 70

( • ) +  = ( • 2)

By formula: (O₂^- • O₂) + O₂ = (O₂^- • 2O₂)

(O₃^- • 2) +  = (O₃^- • 3)

By formula: (O₃^- • 2O₂) + O₂ = (O₃^- • 3O₂)

(O₃^- • 3) +  = (O₃^- • 4)

By formula: (O₃^- • 3O₂) + O₂ = (O₃^- • 4O₂)

(O₃^- • ) +  = (O₃^- • 2)

By formula: (O₃^- • O₂) + O₂ = (O₃^- • 2O₂)

O₄^- +  +  = N₂O₄^-

By formula: O₄^- + N₂ + O₂ = N₂O₄^-

 + 218.5 + 11.25 +  =  + 13 + 1.5

By formula: CBrN₃O₆ + 218.5H₂O + 11.25O₂ + C₁₂H₁₄O₄ = HBr + 13CO₂ + 1.5N₂

HO₂⁺ +  = (HO₂⁺ • )

By formula: HO₂⁺ + O₂ = (HO₂⁺ • O₂)

 + 6 +  = 10 + 2 + 3 + 6

By formula: C₄H₄F₂N₆O₁₀ + 6O₂ + C₆H₁₀O₄ = 10CO₂ + 2HF + 3N₂ + 6H₂O

( •  • ) +  = ( • 2 • )

By formula: (O₂⁺ • N₂ • O₂) + N₂ = (O₂⁺ • 2N₂ • O₂)

Free energy of reaction

 +  =

By formula: C₃₈H₃₀ + O₂ = C₃₈H₃₀O₂

C₁₃H₁₄O +  =

By formula: C₁₃H₁₄O + O₂ = C₁₃H₁₄O₃

 +  =

By formula: C₁₂H₁₂O + O₂ = C₁₂H₁₂O₃

 +  = ( • )

By formula: Li⁺ + O₂ = (Li⁺ • O₂)

Free energy of reaction

 +  = ( • )

By formula: Na⁺ + O₂ = (Na⁺ • O₂)

Free energy of reaction

 +  =  + 

By formula: O₂ + C₁₃H₁₀N₂ = N₂ + C₁₃H₁₀O₂

( • 2) +  = ( • 3)

By formula: (O⁺ • 2O₂) + O₂ = (O⁺ • 3O₂)

( • ) +  = ( • 2)

By formula: (O⁺ • O₂) + O₂ = (O⁺ • 2O₂)

 +  =

By formula: C₆H₈ + O₂ = C₈H₈O₂

 +  = ( • )

By formula: Ca⁺ + O₂ = (Ca⁺ • O₂)

Free energy of reaction

=  + 

By formula: C₇H₆O₃ = C₇H₆O + O₂

References

Go To: Top, Reaction thermochemistry data, Notes

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

Hiraoka, 1988
Hiraoka, K., A Determination of the Stabilities of O2+(O2)n and O2-(O2)n with n = 1 - 8 from Measurements of the Gas-Phase Ion Equilibria, J. Chem. Phys., 1988, 89, 5, 3190, https://doi.org/10.1063/1.454976 . [all data]

Hiraoka, 1988, 2
Hiraoka, K., Determination of the Stabilities of O₃^-(N₂)n, O₃^-(O₂)n, and O₄^-(N₂)n from Measurements of the Gas Phase Equilibria, Chem. Phys., 1988, 125, 2-3, 439, https://doi.org/10.1016/0301-0104(88)87096-4 . [all data]

Carpenter, Zimmer, et al., 1970
Carpenter, G.A.; Zimmer, M.F.; Baroody, E.E.; Robb, R.A., Enthalpy of formation of bromotrinitromethane, J. Chem. Eng. Data, 1970, 15, 553-556. [all data]

Hiraoka, Saluja, et al., 1979
Hiraoka, K.; Saluja, P.P.S.; Kebarle, P., Stabilities of Complexes (N2)nH+, (CO)nH+ and (O2)nH+ for n = 1 to 7 Based on Gas Phase Ion Equilibrium Measurements, Can. J. Chem., 1979, 57, 16, 2159, https://doi.org/10.1139/v79-346 . [all data]

Baroody and Carpenter, 1973
Baroody, E.E.; Carpenter, G.A., Enthalpies of formation of some fluorodinitroethyl derivatives and 2,2',4,4',6,6'-hexanitroazobenzene, J. Chem. Eng. Data, 1973, 18, 28-36. [all data]

Speller and Fitaire, 1983
Speller, C.V.; Fitaire, M., Proceedings of the 16th International Conference on Phenomena of Ionized Gases, H. Boetticher, H. Wenk and E. Shulz - Gulde, ed(s)., ICPIG, Dusseldorf, 1983, 568. [all data]

Bent, Cuthbertson, et al., 1936
Bent, H.E.; Cuthbertson, G.R.; Dorfman, M.; Leary, R.E., Single bond energies. I. The C-C bond in hexaphenylethane, J. Am. Chem. Soc., 1936, 58, 165-170. [all data]

Arnett, Dowd, et al., 1992
Arnett, E.M.; Dowd, P.; Flowers, R.A., II; Ham, S.W.; Naganathan, S., Thermochemical confirmation of the mechanism of action of vitamin K, J. Am. Chem. Soc., 1992, 114, 9209-9210. [all data]

Colonna-Romano and Keller, 1976
Colonna-Romano, L.M.; Keller, G.E., The Clustering of O2 and He to Li+, J. Chem. Phys., 1976, 64, 6, 2684, https://doi.org/10.1063/1.432522 . [all data]

Keller and Beyer, 1971
Keller, G.E.; Beyer, R.A., CO2 and O2 Clustering to Sodium Ions, J. Geophys. Res., 1971, 74, 1, 289, https://doi.org/10.1029/JA076i001p00289 . [all data]

Hartstock, Kanabus-Kaminska, et al., 1989
Hartstock, F.W.; Kanabus-Kaminska, J.M.; Griller, D., Heat of formation of benzophenone oxide [1], Int. J. Chem. Kinet., 1989, 21, 157-163. [all data]

Linn, Ono, et al., 1981
Linn, S.H.; Ono, Y.; Ng, C.Y., A Study of the Ion - Molecule Half Reactions O2+(a4piu, v)...(O2)m ---> O2m+1 + O, m=1, 2, 3, Using the Molecular Beam Photoionization Method, J. Chem. Phys., 1981, 74, 6, 3348, https://doi.org/10.1063/1.441487 . [all data]

Olmsted, 1980
Olmsted, J., III, Photocalorimetric studies of singlet oxygen reactions, J. Am. Chem. Soc., 1980, 102, 66-71. [all data]

Spears and Fehsenfeld, 1972
Spears, K.G.; Fehsenfeld, F.C., Termolecular Association Reactions of Mg, Ca, and Ba Ions, J. Chem. Phys., 1972, 56, 11, 5698, https://doi.org/10.1063/1.1677091 . [all data]

Briner and Chastonay, 1954
Briner, E.; Chastonay, P., Etude thermochemique de l'autoxydation de Valdehyde benzoique, Helv. Chim. Acta, 1954, 238, 539-541. [all data]

Notes

Go To: Top, Reaction thermochemistry data, References

• Symbols used in this document:
  

  T	Temperature
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

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