Ethane, hexafluoro-

• Formula: C₂F₆
• Molecular weight: 138.0118
• IUPAC Standard InChI: InChI=1S/C2F6/c3-1(4,5)2(6,7)8 Copy

  
• IUPAC Standard InChIKey: WMIYKQLTONQJES-UHFFFAOYSA-N Copy
• CAS Registry Number: 76-16-4
• 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.
• Other names: Perfluoroethane; F-116; Freon 116; Hexafluoroethane; C2F6; Fluorocarbon 116; UN 2193; Freon 1166SY; 1,1,1,2,2,2-Hexafluoroethane; R 116; Ethane, 1,1,1,2,2,2-hexafluoro-; HFC 116
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• Information on this page:
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Vibrational and/or electronic energy levels
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Henry's Law data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • 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 by: 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.

Individual Reactions

3 + 2 = 6 + 

By formula: 3C₂F₆ + 2F₃N = 6CF₄ + N₂

 +  = 2

By formula: C₂N₂ + C₂F₆ = 2C₂F₃N

 +  = 2

By formula: C₂F₆ + Br₂ = 2CBrF₃

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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

Appearance energy determinations

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: Takehiko Shimanouchi

Symmetry:   D_3d     Symmetry Number σ = 6

Source: Shimanouchi, 1972

Notes

Gas Chromatography

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, custom temperature program

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References

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

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

Sinke, 1966
Sinke, G.C., The heat of reaction of nitrogen trifluoride and hexafluoroethane, J. Phys. Chem., 1966, 70, 1326-1327. [all data]

Walker, Sinke, et al., 1970
Walker, L.C.; Sinke, G.C.; Perettie, D.J.; Janz, G.J., Enthalpy of formation of trifluoroacetonitrile, J. Am. Chem. Soc., 1970, 92, 4525-4526. [all data]

Coomber and Whittle, 1967
Coomber, J.W.; Whittle, E., Bond dissociation energies from equilibrium studies. Part 2.-D(CF₃-CF₃) and enthalpy of formation of C₂F₆, Trans. Faraday Soc., 1967, 63, 1394-1401. [all data]

Inghram, Hanson, et al., 1980
Inghram, M.G.; Hanson, G.R.; Stockbauer, R., The fragmentation of C₂F₆, Int. J. Mass Spectrom. Ion Phys., 1980, 33, 253. [all data]

Sauvageau, Doucet, et al., 1974
Sauvageau, P.; Doucet, J.; Gilbert, R.; Sandorfy, C., Vacuum ultraviolet and photoelectron spectra of fluoroethanes, J. Chem. Phys., 1974, 61, 391. [all data]

Noutary, 1968
Noutary, C.J., Mass spectrometric study of some fluorocarbons and trifluoromethyl halides, J.Res. NBS, 1968, 72A, 479. [all data]

Smith and Kevan, 1967
Smith, D.; Kevan, L., Dissociative charge exchange of rare-gas ions with C₂F₆ and C₃F₈, J. Chem. Phys., 1967, 46, 1586. [all data]

Simm, Danby, et al., 1975
Simm, I.G.; Danby, C.J.; Eland, J.H.D.; Mansell, P.I., Translational energy release in the loss of fluorine atoms from the ions SF₆⁺, CF₄⁺ and C₂F₆⁺, J. Chem. Soc., 1975, 426. [all data]

Bibby and Carter, 1963
Bibby, M.M.; Carter, G., Ionization and dissociation in some fluorocarbon gases, J. Chem. Soc. Faraday Trans., 1963, 59, 2455. [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]

Zenkevich and Rodin, 2004
Zenkevich, I.G.; Rodin, A.A., Gas chromatographic identification of some volatile toxic fluorine containing compounds by precalculated retention indices, J. Ecol. Chem. (Rus.), 2004, 13, 1, 22-28. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  ΔrH°	Enthalpy of reaction at standard conditions

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