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Tetrafluorohydrazine

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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.

Quantity Value Units Method Reference Comment
Deltafgas-2.00kcal/molReviewChase, 1998Data last reviewed in March, 1964
Quantity Value Units Method Reference Comment
gas,1 bar71.984cal/mol*KReviewChase, 1998Data 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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 1100.1100. - 6000.
A 9.33281131.58671
B 53.665390.116692
C -49.01709-0.023638
D 15.928600.001638
E -0.221202-1.980571
F -7.509401-17.09710
G 68.07020101.5520
H -2.000001-2.000001
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1964 Data last reviewed in March, 1964

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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Kenneth Kroenlein director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tboil200.KN/AStreng, 1971Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Tfus105.KN/AStreng, 1971Uncertainty assigned by TRC = 1.5 K; TRC
Quantity Value Units Method Reference Comment
Tc309.4KN/AKuznetsova, Egorova, et al., 1964Uncertainty assigned by TRC = 0.1 K; TRC
Quantity Value Units Method Reference Comment
Pc36.61atmN/AKuznetsova, Egorova, et al., 1964Uncertainty assigned by TRC = 0.8000 atm; Vis, static VP, Hg & TE, p by elastic spoon gauge; TRC

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Reference Comment
6.31200.Colburn and Kennedy, 1958AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Henry's Law 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: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/kg*bar)
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/kg*bar) d(ln(kH))/d(1/T) (K) Method Reference
0.000852500.LN/A

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 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 ± 0.03eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
11.94 ± 0.03PIBerkowitz, Greene, et al., 1984LBLHLM
12.0 ± 0.1EIFoner and Hudson, 1973LLK
12.04 ± 0.10EIHerron and Dibeler, 1960RDSH
12.84PECornford, Frost, et al., 1971Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
FN+16.6NF2+FEIFoner and Hudson, 1973LLK
FN2+14.2 ± 0.3F2+FEIFoner and Hudson, 1973LLK
FN2+16.7 ± 0.33FEIFoner and Hudson, 1973LLK
F2N+12.565 ± 0.010NF2PIBerkowitz, Greene, et al., 1984LBLHLM
F2N+12.7 ± 0.1NF2EIFoner and Hudson, 1973LLK
F2N+12.4 ± 0.1F(-)+NFEIFoner and Hudson, 1973LLK
NF2+12.6 ± 0.1NF2EICristy and Mamantov, 1970RDSH
NF2+12.7 ± 0.2NF2EIHerron and Dibeler, 1960RDSH
F2N2+16.0 ± 0.12FEIFoner and Hudson, 1973LLK
N2F3+12.0F-EIHerron and Dibeler, 1961RDSH
N2F3+15.6FEIHerron and Dibeler, 1961RDSH

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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Mass spectrum
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Additional Data

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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

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References

Go To: Top, Gas phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, Mass spectrum (electron ionization), NIST Free Links, 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, Henry's Law data, Gas phase ion energetics data, Mass spectrum (electron ionization), NIST Free Links, References