Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Sulfur pentafluoride


Gas phase thermochemistry data

Go To: Top, Reaction thermochemistry data, 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
Deltafgas-217.12kcal/molReviewChase, 1998Data last reviewed in December, 1977
Quantity Value Units Method Reference Comment
gas,1 bar72.837cal/mol*KReviewChase, 1998Data last reviewed in December, 1977

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.

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

View table.

Temperature (K) 298. - 600.600. - 6000.
A 5.89983131.63760
B 88.29790-0.133594
C -119.01300.139556
D 58.86730-0.012475
E -0.158395-1.193360
F -222.4040-230.3270
G 57.53000105.0880
H -217.1240-217.1240
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1977 Data last reviewed in December, 1977

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

(F6S- bullet 4294967295Sulfur pentafluoride) + Sulfur pentafluoride = F6S-

By formula: (F6S- bullet 4294967295F5S) + F5S = F6S-

Quantity Value Units Method Reference Comment
Deltar40.4 ± 3.3kcal/molN/AGrimsrud, Chowdhury, et al., 1985gas phase; «DELTA»Gea(423 K) = -29.8 kcal/mol; «DELTA»Sea = +13 eu. See also Chowdhury, Heinis, et al., 1986, Bopp, Roscioli, et al., 2007
Deltar42.7 ± 2.8kcal/molCIDTLobring, Check, et al., 2003gas phase; Affinity: SF5- + F. Barrier to dissociation, but less than barrier to photodissociation

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]

Grimsrud, Chowdhury, et al., 1985
Grimsrud, E.P.; Chowdhury, S.; Kebarle, P., Electron affinity of SF6 and perfluoromethylcyclohexane. The unusual kinetics of electron transfer reactions A- + B- + A, where A = SF6 or perfluorinated cycloalkanes, J. Chem. Phys., 1985, 83, 1059. [all data]

Chowdhury, Heinis, et al., 1986
Chowdhury, S.; Heinis, T.; Grimsrud, E.P.; Kebarle, P., Entropy Changes and Electron Affinities from Gas-Phase Electron Transfer Equilibria: A- + B = A + B-, J. Phys. Chem., 1986, 90, 12, 2747, https://doi.org/10.1021/j100403a037 . [all data]

Bopp, Roscioli, et al., 2007
Bopp, J.C.; Roscioli, J.R.; Johnson, M.A.; Miller, T.M.; Viggiano, A.A.; Villano, S.M.; Wren, S.W.; Lineberger, Spectroscopic characterization of the isolated SF6- and C4F8- anions: Observation of very long harmonic progressions in symmetric deformation modes upon photodetachment, J. Phys. Chem. A, 2007, 111, 7, 1214-1221, https://doi.org/10.1021/jp0665372 . [all data]

Lobring, Check, et al., 2003
Lobring, K.C.; Check, C.E.; Gilbert, T.M.; Sunderlin, L.S., New measurements of the thermochemistry of SF5- and SF6-, Int. J. Mass Spectrom., 2003, 227, 3, 361-372, https://doi.org/10.1016/S1387-3806(03)00105-2 . [all data]


Notes

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