Sulfur tetrafluoride oxide
- Formula: F4OS
- Molecular weight: 124.058
- IUPAC Standard InChI: InChI=1S/F4OS/c1-6(2,3,4)5
- IUPAC Standard InChIKey: DUGWRBKBGKTKOX-UHFFFAOYSA-N
- CAS Registry Number: 13709-54-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Sulfur fluoride oxide (SF4O); Thionyl tetrafluoride; SOF4
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Ion clustering 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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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Clustering reactions
+
= (
•
)
By formula: F- + F4OS = (F- • F4OS)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 58.0 ± 3.0 | kcal/mol | IMRE | Larson and McMahon, 1987 | gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B,M |
| ΔrH° | 68. ± 10. | kcal/mol | IMRB | Arnold, Miller, et al., 2002 | gas phase; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 52.7 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1987 | gas phase; These relative affinities are ca. 10 kcal/mol weaker than threshold values (see Wenthold and Squires, 1995) for donors greater than ca. 27 kcal/mol in free energy. This discrepancy has not yet been resolved, though the stronger value appears preferable.; B |
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.
Larson and McMahon, 1987
Larson, J.W.; McMahon, T.B.,
Trends in Gas Phase Fluoride Ion Affinities of the Main Group Oxyfluorides and Fluoride Sulfides. Fluoride Adducts of FAsO, FPO, FPO2, F2SiO, F4SO, FBO, F2SiS, FPS, FAsS, F2S2, and S2O.,
Inorg. Chem., 1987, 26, 24, 4018, https://doi.org/10.1021/ic00271a011
. [all data]
Wenthold and Squires, 1995
Wenthold, P.G.; Squires, R.R.,
Bond dissociation energies of F2(-) and HF2(-). A gas-phase experimental and G2 theoretical study,
J. Phys. Chem., 1995, 99, 7, 2002, https://doi.org/10.1021/j100007a034
. [all data]
Arnold, Miller, et al., 2002
Arnold, S.T.; Miller, T.M.; Viggiano, A.A.,
A combined experimental and theoretical study of sulfur oxyfluoride anion and neutral thermochemistry and reactivity,
J. Phys. Chem. A, 2002, 106, 42, 9900-9909, https://doi.org/10.1021/jp020557w
. [all data]
Notes
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- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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