Tetrafluorohydrazine

• Formula: F₄N₂
• Molecular weight: 104.0070
• IUPAC Standard InChI: InChI=1S/F4N2/c1-5(2)6(3)4 Copy

  
• IUPAC Standard InChIKey: GFADZIUESKAXAK-UHFFFAOYSA-N Copy
• CAS Registry Number: 10036-47-2
• 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: Nitrogen fluoride (N2F4); Dinitrogen tetrafluoride; Hydrazine, tetrafluoro-; Perfluorohydrazine; N2F4; Nitrogen fluoride; 1,1,2,2-Tetrafluorohydrazine
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Henry's Law data
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
• Options:
  • Switch to SI units

Data at NIST subscription sites:

• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.

Gas phase thermochemistry data

Go To: Top, Phase change data, Gas phase ion energetics data, References, Notes

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Phase change data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References, Notes

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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Gas phase ion energetics data

Go To: Top, Gas phase thermochemistry data, Phase change data, References, Notes

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

Data evaluated as indicated in comments:
L - Sharon G. Lias

Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
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

References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, 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]

Streng, 1971
Streng, A.G., Miscibility and Compatibility of Some Liquid and Solidified Gases at Low Temperature, J. Chem. Eng. Data, 1971, 16, 357. [all data]

Kuznetsova, Egorova, et al., 1964
Kuznetsova, T.V.; Egorova, L.F.; Pankratov, A.V., Some physicochemical constants of tetrafluorohydrazine., Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 1014. [all data]

Colburn and Kennedy, 1958
Colburn, Charles B.; Kennedy, Al, TETRAFLUOROHYDRAZINE, J. Am. Chem. Soc., 1958, 80, 18, 5004-5004, https://doi.org/10.1021/ja01551a059 . [all data]

Berkowitz, Greene, et al., 1984
Berkowitz, J.; Greene, J.P.; Foropoulos, J., Jr.; Neskovic, O.M., Bonding and ionization energies of N-F and P-F compounds, J. Chem. Phys., 1984, 81, 6166. [all data]

Foner and Hudson, 1973
Foner, S.N.; Hudson, R.L., Mass spectrometric studies of tetrafluorohydrazine and the difluoroamino radical, J. Chem. Phys., 1973, 58, 581. [all data]

Herron and Dibeler, 1960
Herron, J.T.; Dibeler, V.H., Mass spectrum and appearance potentials of tetrafluorohydrazine, J. Chem. Phys., 1960, 33, 1595. [all data]

Cornford, Frost, et al., 1971
Cornford, A.B.; Frost, D.C.; Herring, F.G.; McDowell, C.A., Ionization potentials of the difluoroamino radical by photoelectron spectroscopy and INDO calculations, J. Chem. Phys., 1971, 54, 1872. [all data]

Cristy and Mamantov, 1970
Cristy, S.S.; Mamantov, G., Cryogenic mass spectrometry of reactive fluorine-containing species. II. Applications to synthesis via pyrolysis, photolysis and microwave discharge, Intern. J. Mass Spectrom. Ion Phys., 1970, 5, 319. [all data]

Herron and Dibeler, 1961
Herron, J.T.; Dibeler, V.H., Mass spectrometric study of NF₂, NF₃, N₂F₂, and N₂F₄, J. Res. NBS, 1961, 65A, 405. [all data]

Notes

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, References

• Symbols used in this document:
  

  AE	Appearance energy
  IE (evaluated)	Recommended ionization energy
  Pc	Critical pressure
  S°gas,1 bar	Entropy of gas at standard conditions (1 bar)
  Tboil	Boiling point
  Tc	Critical temperature
  Tfus	Fusion (melting) point
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔvapH	Enthalpy of vaporization

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
• Customer support for NIST Standard Reference Data products.