Tetrafluorohydrazine
- Formula: F4N2
- Molecular weight: 104.0070
- IUPAC Standard InChIKey: GFADZIUESKAXAK-UHFFFAOYSA-N
- 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
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -8.37 | kJ/mol | Review | Chase, 1998 | Data last reviewed in March, 1964 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 301.18 | J/mol*K | Review | Chase, 1998 | Data last reviewed in March, 1964 |
Gas Phase Heat Capacity (Shomate Equation)
Cp° = 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
Cp = heat capacity (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. to 1100. | 1100. to 6000. |
---|---|---|
A | 39.04848 | 132.1588 |
B | 224.5360 | 0.488239 |
C | -205.0875 | -0.098902 |
D | 66.64526 | 0.006853 |
E | -0.925509 | -8.286706 |
F | -31.41933 | -71.53427 |
G | 284.8057 | 424.8936 |
H | -8.368001 | -8.368001 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in March, 1964 | Data last reviewed in March, 1964 |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Mass spectrum (electron ionization), 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 11.94 ± 0.03 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
11.94 ± 0.03 | PI | Berkowitz, Greene, et al., 1984 | LBLHLM |
12.0 ± 0.1 | EI | Foner and Hudson, 1973 | LLK |
12.04 ± 0.10 | EI | Herron and Dibeler, 1960 | RDSH |
12.84 | PE | Cornford, Frost, et al., 1971 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
FN+ | 16.6 | NF2+F | EI | Foner and Hudson, 1973 | LLK |
FN2+ | 14.2 ± 0.3 | F2+F | EI | Foner and Hudson, 1973 | LLK |
FN2+ | 16.7 ± 0.3 | 3F | EI | Foner and Hudson, 1973 | LLK |
F2N+ | 12.565 ± 0.010 | NF2 | PI | Berkowitz, Greene, et al., 1984 | LBLHLM |
F2N+ | 12.7 ± 0.1 | NF2 | EI | Foner and Hudson, 1973 | LLK |
F2N+ | 12.4 ± 0.1 | F(-)+NF | EI | Foner and Hudson, 1973 | LLK |
NF2+ | 12.6 ± 0.1 | NF2 | EI | Cristy and Mamantov, 1970 | RDSH |
NF2+ | 12.7 ± 0.2 | NF2 | EI | Herron and Dibeler, 1960 | RDSH |
F2N2+ | 16.0 ± 0.1 | 2F | EI | Foner and Hudson, 1973 | LLK |
N2F3+ | 12.0 | F- | EI | Herron and Dibeler, 1961 | RDSH |
N2F3+ | 15.6 | F | EI | Herron and Dibeler, 1961 | RDSH |
Mass spectrum (electron ionization)
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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 1335 |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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.
Chase, 1998
Chase, M.W., Jr.,
NIST-JANAF Themochemical Tables, Fourth Edition,
J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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, Gas phase ion energetics data, Mass spectrum (electron ionization), References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy 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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