Sulfur pentafluoride
- Formula: F5S
- Molecular weight: 127.057
- IUPAC Standard InChIKey: HAQZDUWRNKKMQY-UHFFFAOYSA-N
- CAS Registry Number: 10546-01-7
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, 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 |
---|---|---|---|---|---|
ΔfH°gas | -908.45 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1977 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 304.75 | J/mol*K | Review | Chase, 1998 | Data 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. to 600. | 600. to 6000. |
---|---|---|
A | 24.68489 | 132.3717 |
B | 369.4384 | -0.558957 |
C | -497.9504 | 0.583902 |
D | 246.3008 | -0.052197 |
E | -0.662725 | -4.993018 |
F | -930.5383 | -963.6882 |
G | 240.7055 | 439.6882 |
H | -908.4468 | -908.4468 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in December, 1977 | Data last reviewed in December, 1977 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, 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
By formula: (F6S- • 4294967295F5S) + F5S = F6S-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 169. ± 14. | kJ/mol | N/A | Grimsrud, Chowdhury, et al., 1985 | gas phase; ΔGea(423 K) = -29.8 kcal/mol; ΔSea = +13 eu. See also Chowdhury, Heinis, et al., 1986, Bopp, Roscioli, et al., 2007 |
ΔrH° | 179. ± 12. | kJ/mol | CIDT | Lobring, Check, et al., 2003 | gas 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 | λmin (nm) |
λmax (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
w | Weak |
m | Medium |
vs | Very strong |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Vibrational and/or electronic energy levels, 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]
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
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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