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Sulfur hexafluoride

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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-291.699kcal/molReviewChase, 1998Data last reviewed in June, 1976
Quantity Value Units Method Reference Comment
gas,1 bar69.675cal/mol*KReviewChase, 1998Data last reviewed in June, 1976

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. - 1000.1000. - 6000.
A 14.0782037.55719
B 61.075500.115684
C -60.29510-0.024074
D 21.214300.001703
E -0.384553-1.978881
F -299.4130-308.7930
G 68.83160105.9300
H -291.7000-291.7000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1976 Data last reviewed in June, 1976

Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry 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: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

(Fluorine anion bullet Sulfur hexafluoride) + Sulfur hexafluoride = (Fluorine anion bullet 2Sulfur hexafluoride)

By formula: (F- bullet F6S) + F6S = (F- bullet 2F6S)

Quantity Value Units Method Reference Comment
Deltar4.00 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff = +1.4 at 141 K
Quantity Value Units Method Reference Comment
Deltar-1.40 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff = +1.4 at 141 K

F6S- + Sulfur hexafluoride = (F6S- bullet Sulfur hexafluoride)

By formula: F6S- + F6S = (F6S- bullet F6S)

Quantity Value Units Method Reference Comment
Deltar2.30 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff=+0.37 at 141K
Quantity Value Units Method Reference Comment
Deltar-3.10 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff=+0.37 at 141K

Fluorine anion + Sulfur hexafluoride = (Fluorine anion bullet Sulfur hexafluoride)

By formula: F- + F6S = (F- bullet F6S)

Quantity Value Units Method Reference Comment
Deltar5.40 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase
Quantity Value Units Method Reference Comment
Deltar-0.6 ± 3.0kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase

C6H4N2O4- + Sulfur hexafluoride = (C6H4N2O4- bullet Sulfur hexafluoride)

By formula: C6H4N2O4- + F6S = (C6H4N2O4- bullet F6S)

Quantity Value Units Method Reference Comment
Deltar<8.50kcal/molIMRBChowdhury and Kebarle, 1986gas phase
Quantity Value Units Method Reference Comment
Deltar<1.90kcal/molIMRBChowdhury and Kebarle, 1986gas phase

C6H4N2O4- + Sulfur hexafluoride = (C6H4N2O4- bullet Sulfur hexafluoride)

By formula: C6H4N2O4- + F6S = (C6H4N2O4- bullet F6S)

Quantity Value Units Method Reference Comment
Deltar<8.40kcal/molIMRBChowdhury and Kebarle, 1986gas phase
Quantity Value Units Method Reference Comment
Deltar<1.70kcal/molIMRBChowdhury and Kebarle, 1986gas phase

F5S- + Sulfur hexafluoride = (F5S- bullet Sulfur hexafluoride)

By formula: F5S- + F6S = (F5S- bullet F6S)

Quantity Value Units Method Reference Comment
Deltar<2.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; No formation at 141 K

Chlorine anion + Sulfur hexafluoride = (Chlorine anion bullet Sulfur hexafluoride)

By formula: Cl- + F6S = (Cl- bullet F6S)

Quantity Value Units Method Reference Comment
Deltar<1.80kcal/molIMRBChowdhury and Kebarle, 1986gas phase

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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]

Hiraoka, Shimizu, et al., 1995
Hiraoka, K.; Shimizu, A.; Minamitsu, A.; Nasu, M.; Fujimaki, S.; Yamabe, S., The small binding energies of the negative cluster ions: SF5-(SF6)1, SF6-(SF6)1 and F-(SF6)n (n=1 and 2), in the gas phase, Chem. Phys. Lett., 1995, 241, 5-6, 623, https://doi.org/10.1016/0009-2614(95)00676-U . [all data]

Chowdhury and Kebarle, 1986
Chowdhury, S.; Kebarle, P., Role of Binding Energies in A-.B and A.B- Complexes in the Kinetics of Gas Phase Electron Transfer Reactions:A- + B = A + B- Involving Perfluoro Compounds: SF6, C6F11CF3, J. Chem. Phys., 1986, 85, 9, 4989, https://doi.org/10.1063/1.451687 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References