Sulfur trifluoride
- Formula: F3S
- Molecular weight: 89.060
- IUPAC Standard InChI: InChI=1S/F3S/c1-4(2)3
- IUPAC Standard InChIKey: PSCXEUSWZWRCMQ-UHFFFAOYSA-N
- CAS Registry Number: 30937-38-3
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics 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 |
|---|---|---|---|---|---|
| ΔfH°gas | -120.23 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1977 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 68.365 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 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.
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| Temperature (K) | 298. to 6000. |
|---|---|
| A | 18.89000 |
| B | 0.840722 |
| C | -0.234059 |
| D | 0.021282 |
| E | -0.374292 |
| F | -127.1490 |
| G | 88.87990 |
| H | -120.2270 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1977 |
Gas phase ion energetics 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 as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
B - John E. Bartmess
View reactions leading to F3S+ (ion structure unspecified)
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 3.07 ± 0.20 | NBAE | Compton, Reinhardt, et al., 1978 | From SF6; B |
| 2.90 ± 0.10 | EIAE | Harland and Thynne, 1971 | From SF4; B |
| 2.50 ± 0.50 | IMRB | Miller, Miller, et al., 1995 | S- + SF4 -> SF3- + SF observed. SF3- + SF4 -> SF5- + SF2 observed; B |
| 2.73 ± 0.65 | N/A | Chase Jr., Curnutt, et al., 1982 | Reanalysis: Harland and Thynne, 1971; B |
| 2.71 | SI | Page and Goode, 1969 | The Magnetron method, lacking mass analysis, is not considered reliable.; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.18 ± 0.07 | END | Fischer, Kickel, et al., 1992 | LL |
| 7.3 | EI | Langford, Almeida, et al., 1990 | LL |
References
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics 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]
Compton, Reinhardt, et al., 1978
Compton, R.N.; Reinhardt, P.W.; Cooper, C.D.,
Collisional ionization between fast alkali atoms and selected hexafluoride molecules,
J. Chem. Phys., 1978, 68, 2023. [all data]
Harland and Thynne, 1971
Harland, P.W.; Thynne, J.C.J.,
Autodetachment lifetimes, attachment cross sections, and negative ions formed by sulfur hexafluoride and sulfur tetrafluoride,
J. Phys. Chem., 1971, 75, 3517. [all data]
Miller, Miller, et al., 1995
Miller, A.E.S.; Miller, T.M.; Viggiano, A.A.; Morris, R.A.; Vandoren, J.M.; Arnold, S.T.; Paulson, J.,
Negative ion chemistry of SF4,
J. Chem. Phys., 1995, 102, 22, 8865, https://doi.org/10.1063/1.468940
. [all data]
Chase Jr., Curnutt, et al., 1982
Chase Jr.; Curnutt, J.L.; Downy Jr.; McDonald, R.A.; Syverrud, A.N.; Valenzuela, E.A.,
JANAF Thermochemical Tables 1982 Supplement,
J. Phys. Chem. Ref. Data, 1982, 11, 3, 695, https://doi.org/10.1063/1.555666
. [all data]
Page and Goode, 1969
Page, F.M.; Goode, G.C.,
Negative Ions and the Magnetron., Wiley, NY, 1969. [all data]
Fischer, Kickel, et al., 1992
Fischer, E.R.; Kickel, B.L.; Armentrout, P.B.,
Collision-induced dissociation and charge transfer reactions of SFx+ (x = 1-5_): Thermochemistry of sulfur fluoride ions and neutrals,
J. Chem. Phys., 1992, 97, 4859. [all data]
Langford, Almeida, et al., 1990
Langford, M.L.; Almeida, D.P.; Harris, F.M.,
Measurements of single ionization energies or electron affinities of SFn molecules (n = 1-5) using double-charge-transfer spectroscopy,
Int. J. Mass Spectrom. Ion Processes, 1990, 98, 147. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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