Difluoroamino radical

• Formula: F₂N
• Molecular weight: 52.0035
• IUPAC Standard InChI: InChI=1S/F2N/c1-3-2 Copy

  
• IUPAC Standard InChIKey: BBZREMAMWBDNHH-UHFFFAOYSA-N Copy
• CAS Registry Number: 3744-07-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Information on this page:
  • Gas phase thermochemistry data
  • Vibrational and/or electronic energy levels
  • References
  • Notes
• Other data available:
  • Gas phase ion energetics data
• Data at other public NIST sites:
  • Microwave spectra (on physics lab web site)
  • Gas Phase Kinetics Database
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Gas phase 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.

Gas Phase Heat Capacity (Shomate Equation)

C_p° = A + B*t + C*t² + D*t³ + E/t²
H° − H°_298.15= A*t + B*t²/2 + C*t³/3 + D*t⁴/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t²/2 + D*t³/3 − E/(2*t²) + G
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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: Marilyn E. Jacox

State:   A

State:   X

Additional references: Jacox, 1994, page 107; Jacox, 1998, page 201; Comeford and Mann, 1965; Brown, Burden, et al., 1974; Muller, Loblein, et al., 2008

Notes

References

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

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Johnson and Colburn, 1961
Johnson, F.A.; Colburn, C.B., None, J. Am. Chem. Soc., 1961, 83, 14, 3043, https://doi.org/10.1021/ja01475a018 . [all data]

Kuznetsova, Kuzyakov, et al., 1964
Kuznetsova, L.A.; Kuzyakov, Yu.Ya.; Tatevskii, V.M., Opt. i Spektrosk., 1964, 16, 542. [all data]

Goodfriend and Woods, 1964
Goodfriend, P.L.; Woods, H.P., The absorption spectrum of NF2, J. Mol. Spectrosc., 1964, 13, 1-4, 63, https://doi.org/10.1016/0022-2852(64)90055-4 . [all data]

Jacox, Milligan, et al., 1974
Jacox, M.E.; Milligan, D.E.; Guillory, W.A.; Smith, J.J., Matrix-isolation study of the vacuum-ultraviolet photolysis of NF3, J. Mol. Spectrosc., 1974, 52, 2, 322, https://doi.org/10.1016/0022-2852(74)90122-2 . [all data]

Harmony, Myers, et al., 1961
Harmony, M.D.; Myers, R.J.; Schoen, L.J.; Lide, D.R., Jr.; Mann, D.E., Infrared Spectrum and Structure of the NF2 Radical, J. Chem. Phys., 1961, 35, 3, 1129, https://doi.org/10.1063/1.1701191 . [all data]

Davies, Handy, et al., 1979
Davies, P.B.; Handy, B.J.; Russell, D.K., Infrared diode laser spectroscopy of the NF2 radical, Chem. Phys. Lett., 1979, 68, 2-3, 395, https://doi.org/10.1016/0009-2614(79)87224-3 . [all data]

Hakuta and Uehara, 1981
Hakuta, K.; Uehara, H., High-field laser magnetic resonance spectra of NF2 (ν1) tuned by the avoidance of Zeeman-level crossings, J. Chem. Phys., 1981, 74, 11, 5995, https://doi.org/10.1063/1.441038 . [all data]

Davies, Hamilton, et al., 1984
Davies, P.B.; Hamilton, P.A.; Lewis-Bevan, W.; Russell, D.K., Infrared Laser Spectroscopy of Free Radicals and Ions. II. Analysis of the Formula Band of Formula, Proc. Roy. Soc. (London) A392, 1984, 392, 1803, 445, https://doi.org/10.1098/rspa.1984.0041 . [all data]

Jacox and Thompson, 1995
Jacox, M.E.; Thompson, W.E., Matrix isolation study of the interaction of excited neon atoms with NF3. Infrared spectra of NF+3, NF+2, and NF-2, J. Chem. Phys., 1995, 102, 1, 6, https://doi.org/10.1063/1.469446 . [all data]

Jacox and Milligan, 1967
Jacox, M.E.; Milligan, D.E., Production and Reaction of Atomic Fluorine in Solids. Vibrational and Electronic Spectra of the Free Radical HNF, J. Chem. Phys., 1967, 46, 1, 184, https://doi.org/10.1063/1.1840369 . [all data]

Harmony and Myers, 1962
Harmony, M.D.; Myers, R.J., Infrared Spectrum and Thermodynamic Functions of the NF2 Radical, J. Chem. Phys., 1962, 37, 3, 636, https://doi.org/10.1063/1.1701388 . [all data]

Davies and Hamilton, 1984
Davies, P.B.; Hamilton, P.A., Infrared Laser Spectroscopy of Free Radicals and Ions. III. The Formula Band of NFFormula, Proc. Roy. Soc. (London) A393, 1984, 393, 1805, 397, https://doi.org/10.1098/rspa.1984.0064 . [all data]

Uehara and Horiai, 1986
Uehara, H.; Horiai, K., Laser microwave double resonance using high-field LMR spectra for the ν3 band of NF2, J. Chem. Phys., 1986, 84, 10, 5568, https://doi.org/10.1063/1.449915 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Comeford and Mann, 1965
Comeford, J.J.; Mann, D.E., Formation of NF from NF2 by photolysis, Spectrochim. Acta, 1965, 21, 1, 197, https://doi.org/10.1016/0371-1951(65)80116-3 . [all data]

Brown, Burden, et al., 1974
Brown, R.D.; Burden, F.R.; Godfrey, P.D.; Gillard, I.R., Microwave spectrum of NF2, J. Mol. Spectrosc., 1974, 52, 2, 301, https://doi.org/10.1016/0022-2852(74)90121-0 . [all data]

Muller, Loblein, et al., 2008
Muller, H.S.P.; Loblein, K.; Hubner, H.; Huttner, W.; Brown, J.M., The rotational spectrum of the NF2 free radical: Determination of molecular structure, J. Mol. Spectrosc., 2008, 251, 1-2, 185, https://doi.org/10.1016/j.jms.2008.02.014 . [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, References

• Symbols used in this document:
  

  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  ΔfH°gas	Enthalpy of formation of gas at standard conditions

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