fluorine

• Formula: F₂
• Molecular weight: 37.9968064
• IUPAC Standard InChI: InChI=1S/F2/c1-2 Copy

  
• IUPAC Standard InChIKey: PXGOKWXKJXAPGV-UHFFFAOYSA-N Copy
• CAS Registry Number: 7782-41-4
• 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.
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• Information on this page:
  • Reaction thermochemistry data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Constants of diatomic molecules
  • Fluid Properties
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
B - 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

2 = 4 + 5 + 3

By formula: 2C₂F₁₁N₅ = 4CF₄ + 5N₂ + 3F₂

CF₅N =  + 0.5 + 0.5

By formula: CF₅N = CF₄ + 0.5N₂ + 0.5F₂

 + 0.5 + 0.5 = CF₅N

By formula: CF₄ + 0.5N₂ + 0.5F₂ = CF₅N

2 = 2 + 3 + 3

By formula: 2CF₇N₃ = 2CF₄ + 3N₂ + 3F₂

2 = 2 + 3 + 

By formula: 2CF₅N₃ = 2CF₄ + 3N₂ + F₂

=  + 2 + 2

By formula: CF₈N₄ = CF₄ + 2N₂ + 2F₂

=  +  + 

By formula: CF₆N₂ = CF₄ + N₂ + F₂

 +  = F₃^-

By formula: F^- + F₂ = F₃^-

 + 4 =  + 4

By formula: CF₄ + 4HF = CH₄ + 4F₂

 + 2 = 2

By formula: C₂F₄ + 2F₂ = 2CF₄

Ion clustering 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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = F₃^-

By formula: F^- + F₂ = F₃^-

References

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

Sinke, Thompson, et al., 1967
Sinke, G.C.; Thompson, C.J.; Jostad, R.E.; Walker, L.C.; Swanson, A.C.; Stull, D.R., Enthalpies of formation and bond energies of some fluoramines, J. Chem. Phys., 1967, 47, 1852-1854. [all data]

Walker, 1972
Walker, L.C., The enthalpy of decomposition of CF₃NF₂(g) to CF₄(g), N₂(g), and F₂(g), J. Chem. Thermodyn., 1972, 4, 219-223. [all data]

Artau, Nizzi, et al., 2000
Artau, A.; Nizzi, K.E.; Hill, B.T.; Sunderlin, L.S.; Wenthold, P.G., Bond dissociation energy in trifluoride ion, J. Am. Chem. Soc., 2000, 122, 43, 10667-10670, https://doi.org/10.1021/ja001613e . [all data]

Jessup, McCoskey, et al., 1955
Jessup, R.S.; McCoskey, R.E.; Nelson, R.A., The heat of formation of tetrafluoromethane, J. Am. Chem. Soc., 1955, 77, 244-245. [all data]

Domalski and Armstrong, 1967
Domalski, E.S.; Armstrong, G.T., The heats of combustion of polytetrafluoroethylene (teflon) and graphite in elemental fluorine, J. Res. NBS, 1967, 71, 105-118. [all data]

Notes

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• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

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