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
Δfgas-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. to 1000.1000. to 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

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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: 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 • Sulfur hexafluoride) + Sulfur hexafluoride = (Fluorine anion • 2Sulfur hexafluoride)

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

Quantity Value Units Method Reference Comment
Δr4.00 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff = +1.4 at 141 K
Quantity Value Units Method Reference Comment
Δr-1.40 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff = +1.4 at 141 K

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

By formula: F6S- + F6S = (F6S- • F6S)

Quantity Value Units Method Reference Comment
Δr2.30 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff=+0.37 at 141K
Quantity Value Units Method Reference Comment
Δr-3.10 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase; Entropy estimated. Gaff=+0.37 at 141K

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

By formula: F- + F6S = (F- • F6S)

Quantity Value Units Method Reference Comment
Δr5.40 ± 0.30kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase
Quantity Value Units Method Reference Comment
Δr-0.6 ± 3.0kcal/molTDAsHiraoka, Shimizu, et al., 1995gas phase

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

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

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

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

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

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

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

By formula: F5S- + F6S = (F5S- • F6S)

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

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

By formula: Cl- + F6S = (Cl- • F6S)

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

IR Spectrum

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Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Data compiled by: Pamela M. Chu, Franklin R. Guenther, George C. Rhoderick, and Walter J. Lafferty


Gas Chromatography

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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

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillarySPB-1135.Flanagan, Streete, et al., 199760. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C
CapillarySPB-1135.Strete, Ruprah, et al., 199260. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, IR Spectrum, Gas Chromatography, 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]

Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]

Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J., Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning, Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111 . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, IR Spectrum, Gas Chromatography, References