Difluoromethyl radical

• Formula: CHF₂
• Molecular weight: 51.0154
• IUPAC Standard InChI: InChI=1S/CHF2/c2-1-3/h1H Copy

  
• IUPAC Standard InChIKey: JNCMHMUGTWEVOZ-UHFFFAOYSA-N Copy
• CAS Registry Number: 2670-13-5
• Chemical structure:
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• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Vibrational and/or electronic energy levels
• Data at other public NIST sites:
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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:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess

View reactions leading to CHF₂⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Appearance energy determinations

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.

Graul and Squires, 1990
Graul, S.T.; Squires, R.R., Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions, J. Am. Chem. Soc., 1990, 112, 7, 2517, https://doi.org/10.1021/ja00163a007 . [all data]

Lee, Dyke, et al., 1998
Lee, E.P.F.; Dyke, J.M.; Mayhew, C.A., Study of the OH-+CH2F2 reaction by selected ion flow tube experiments and ab initio calculations, J. Phys. Chem. A, 1998, 102, 43, 8349-8354, https://doi.org/10.1021/jp982224y . [all data]

Goto, Nakamura, et al., 1994
Goto, M.; Nakamura, K.; Toyoda, H.; Sugai, H., Cross section measurements for electron-impact dissociation of CHF₃ into neutral and ionic fragments, Jpn. J. Appl. Phys. Part 1, 1994, 33, 3602. [all data]

Lias, Bartmess, et al., 1988
Lias, S.G.; Bartmess, J.E.; Liebman, J.F.; Holmes, J.L.; Levin, R.D.; Mallard, W.G., Gas-phase ion and neutral thermochemistry, J. Phys. Chem. Ref. Data, Suppl. 1, 1988, 17, 1-861. [all data]

Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T., Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements in Ions Chemistry,, ed. M.T. Bowers, 1979. [all data]

Syrvatka, Gil'burd, et al., 1973
Syrvatka, B.G.; Gil'burd, M.M.; Bel'ferman, A.L., Ion-dissociative processes of some halogen containing butadienes and particles structure, Zh. Org. Khim., 1973, 9, 1117. [all data]

Lossing, 1972
Lossing, F.P., Free radicals by mass spectrometry. XLIV. Ionization potentials bond dissociation energies for chloro-and fluoromethyl radicals, Bull. Soc. Chim. Belg., 1972, 81, 125. [all data]

Lossing, Kebarle, et al., 1959
Lossing, F.P.; Kebarle, P.; DeSousa, J.B., Ionization potentials of alkyl and halogenated alkyl free radicals, 1959. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  EA	Electron affinity

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