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Sulfur pentafluoride


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-908.45kJ/molReviewChase, 1998Data last reviewed in December, 1977
Quantity Value Units Method Reference Comment
gas,1 bar304.75J/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 (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. - 600.600. - 6000.
A 24.68489132.3717
B 369.4384-0.558957
C -497.95040.583902
D 246.3008-0.052197
E -0.662725-4.993018
F -930.5383-963.6882
G 240.7055439.6882
H -908.4468-908.4468
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1977 Data last reviewed in December, 1977

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

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

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

Quantity Value Units Method Reference Comment
Deltar169. ± 14.kJ/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
Deltar179. ± 12.kJ/molCIDTLobring, Check, et al., 2003gas phase; Affinity: SF5- + F. Barrier to dissociation, but less than barrier to photodissociation

Vibrational and/or electronic energy levels

Go To: Top, Gas phase thermochemistry data, 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.

Data compiled by: Marilyn E. Jacox

State:   ?


 Energy 
 (cm-1
 Med.   Transition   «lambda»min 
 (nm) 
 «lambda»max 
 (nm) 
 References

Ne 200 235 Kronberg, von Ahsen, et al., 2005

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

a1 1 Eq. s-stretch 891.7 w m Ne IR Kronberg, von Ahsen, et al., 2005
1 Eq. s-stretch 887 Ar IR Hassanzadeh and Andrews, 1992
Kronberg, von Ahsen, et al., 2005
2 633.0 w Ne IR Kronberg, von Ahsen, et al., 2005
2 631 Ar IR Kronberg, von Ahsen, et al., 2005
3 SF stretch 553.8 Ne IR Lugez, Jacox, et al., 1998
Kronberg, von Ahsen, et al., 2005
3 SF stretch 552 m Ar IR Smardzewski and Fox, 1976
Smardzewski and Fox, 1977
Kronberg, von Ahsen, et al., 2005
e 7 SF a-stretch 817.8 vs Ne IR Lugez, Jacox, et al., 1998
Kronberg, von Ahsen, et al., 2005
7 SF a-stretch 813.1 vs Ar IR Smardzewski and Fox, 1976
Smardzewski and Fox, 1977
Hassanzadeh and Andrews, 1992
8 524.7 w Ne IR Kronberg, von Ahsen, et al., 2005
8 524 Ar IR Kronberg, von Ahsen, et al., 2005
9 387.2 w Ne IR Kronberg, von Ahsen, et al., 2005
9 384 Ar IR Kronberg, von Ahsen, et al., 2005

Additional references: Jacox, 1994, page 358; Jacox, 2003, page 333; Fessenden and Schuler, 1966; Morton and Preston, 1973

Notes

wWeak
mMedium
vsVery strong

References

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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]

Kronberg, von Ahsen, et al., 2005
Kronberg, M.; von Ahsen, S.; Willner, H.; Francisco, J.S., The SF5Ox Radicals,x=0-3, Angew. Chem. Int. Ed., 2005, 44, 2, 253, https://doi.org/10.1002/anie.200461235 . [all data]

Hassanzadeh and Andrews, 1992
Hassanzadeh, P.; Andrews, L., Matrix reactions of sulfur atoms and fluorine. Infrared spectra of sulfur monofluoride, sulfur difluoride and sulfur trifluoride in solid argon, J. Phys. Chem., 1992, 96, 1, 79, https://doi.org/10.1021/j100180a018 . [all data]

Lugez, Jacox, et al., 1998
Lugez, C.L.; Jacox, M.E.; King, R.A.; Schaefer, H.F., III, Experimental and ab initio study of the infrared spectra of ionic species derived from SF[sub 6] and SF[sub 4] and trapped in solid neon, J. Chem. Phys., 1998, 108, 23, 9639, https://doi.org/10.1063/1.476440 . [all data]

Smardzewski and Fox, 1976
Smardzewski, R.R.; Fox, W.B., Isolation and infrared spectral identification of the pentafluorosulfanyl radical, J. Fluorine Chem., 1976, 7, 4, 456, https://doi.org/10.1016/S0022-1139(00)82111-9 . [all data]

Smardzewski and Fox, 1977
Smardzewski, R.R.; Fox, W.B., Vacuum ultraviolet photolysis of sulfur hexafluoride and its derivatives in argon matrices. The infrared spectrum of the SF5 radical, J. Chem. Phys., 1977, 67, 5, 2309, https://doi.org/10.1063/1.435066 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]

Jacox, 2003
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement B, J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629 . [all data]

Fessenden and Schuler, 1966
Fessenden, R.W.; Schuler, R.H., Isotropic ESR Spectra of Fluorine-Containing Radicals in SF6 Matrices, J. Chem. Phys., 1966, 45, 5, 1845, https://doi.org/10.1063/1.1727845 . [all data]

Morton and Preston, 1973
Morton, J.R.; Preston, K.F., An EPR study of the addition of oxy-radicals to sulphur tetraflouride, Chem. Phys. Lett., 1973, 18, 1, 98, https://doi.org/10.1016/0009-2614(73)80349-5 . [all data]


Notes

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