1,1,1',1'-Tetrafluorodimethyl ether

• Formula: C₂H₂F₄O
• Molecular weight: 118.0303
• IUPAC Standard InChI: InChI=1S/C2H2F4O/c3-1(4)7-2(5)6/h1-2H Copy

  
• IUPAC Standard InChIKey: IOCGMLSHRBHNCM-UHFFFAOYSA-N Copy
• CAS Registry Number: 1691-17-4
• 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: (Difluoromethoxy)(difluoro)methane; R E 134; Methane, oxybis(difluoro-
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Phase change data
  • Reaction thermochemistry data
  • Ion clustering data
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Phase change 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: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

 +  = ( • )

By formula: F^- + C₂H₂F₄O = (F^- • C₂H₂F₄O)

CN^- +  = (CN^- • )

By formula: CN^- + C₂H₂F₄O = (CN^- • C₂H₂F₄O)

 +  = ( • )

By formula: Cl^- + C₂H₂F₄O = (Cl^- • C₂H₂F₄O)

C₂H₂ClF₄O^- + 2 = C₄H₄ClF₈O₂^-

By formula: C₂H₂ClF₄O^- + 2C₂H₂F₄O = C₄H₄ClF₈O₂^-

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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

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

CN^- +  = (CN^- • )

By formula: CN^- + C₂H₂F₄O = (CN^- • C₂H₂F₄O)

C₂H₂ClF₄O^- + 2 = C₄H₄ClF₈O₂^-

By formula: C₂H₂ClF₄O^- + 2C₂H₂F₄O = C₄H₄ClF₈O₂^-

 +  = ( • )

By formula: Cl^- + C₂H₂F₄O = (Cl^- • C₂H₂F₄O)

 +  = ( • )

By formula: F^- + C₂H₂F₄O = (F^- • C₂H₂F₄O)

Mass spectrum (electron ionization)

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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

Spectrum

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Additional Data

References

Go To: Top, Phase change data, Reaction thermochemistry data, Ion clustering data, Mass spectrum (electron ionization), Notes

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

Defibaugh, Gillis, et al., 1992
Defibaugh, D.R.; Gillis, K.A.; Moldover, M.R.; Morrison, G.; Schmidt, J.W., Thermodynamic Properties of CHF₂-O-CHF₂, Bis(difluoromethyl) Ether, Fluid Phase Equilib., 1992, 81, 285-305, https://doi.org/10.1016/0378-3812(92)85158-5 . [all data]

Larson and McMahon, 1983
Larson, J.W.; McMahon, T.B., Strong hydrogen bonding in gas-phase anions. An ion cyclotron resonance determination of fluoride binding energetics to bronsted acids from gas-phase fluoride exchange equilibria measurements, J. Am. Chem. Soc., 1983, 105, 2944. [all data]

Wenthold and Squires, 1995
Wenthold, P.G.; Squires, R.R., Bond dissociation energies of F2(-) and HF2(-). A gas-phase experimental and G2 theoretical study, J. Phys. Chem., 1995, 99, 7, 2002, https://doi.org/10.1021/j100007a034 . [all data]

Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P., Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions, J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014 . [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Fluoride and chloride affinities of main group oxides, fluorides, oxofluorides, and alkyls. Quantitative scales of lewis acidities from ion cyclotron resonance halide-exchange equilibria, J. Phys. Chem., 1984, 88, 1083. [all data]

Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. The energetics of interaction between cyanide ion and bronsted acids, J. Am. Chem. Soc., 1987, 109, 6230. [all data]

Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P., Hydration of CN-, NO₂-, NO₃-, and HO- in the gas phase, Can. J. Chem., 1971, 49, 3308. [all data]

Bogdanov, Lee, et al., 2001
Bogdanov, B.; Lee, H.J.S.; McMahon, T.B., Influence of fluorine substitution on the structures and thermochemistry of chloride ion-ether complexes in the gas phase, Int. J. Mass Spectrom., 2001, 210, 387-402, https://doi.org/10.1016/S1387-3806(01)00404-3 . [all data]

Notes

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• Symbols used in this document:
  

  Pc	Critical pressure
  Tc	Critical temperature
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions
  ρc	Critical density

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