Phosphenothious fluoride
- Formula: FPS
- Molecular weight: 82.037
- CAS Registry Number: 55753-39-4
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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 |
---|---|---|---|---|---|
ΔfH°gas | -172.27 | kJ/mol | Review | Chase, 1998 | Data last reviewed in September, 1962 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 277.72 | J/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1962 |
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 800. | 800. to 6000. |
---|---|---|
A | 27.03881 | 57.78899 |
B | 87.96776 | 0.257934 |
C | -97.23407 | -0.056845 |
D | 39.03839 | 0.004198 |
E | -0.108550 | -1.907654 |
F | -183.8224 | -195.1932 |
G | 287.5759 | 338.7634 |
H | -172.2683 | -172.2683 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in September, 1962 | Data last reviewed in September, 1962 |
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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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
+ FPS = F2PS-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 259. ± 21. | kJ/mol | IMRB | 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 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 234. ± 17. | kJ/mol | IMRB | 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 |
By formula: F- + FPS = (F- • FPS)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 260. ± 20. | kJ/mol | ICR | Larson and McMahon, 1987 | gas phase; bracketing; M |
Vibrational and/or electronic energy levels
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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: Marilyn E. Jacox
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a' | 1 | PF stretch | 803.25 | gas | IR | Beckers, Bogey, et al., 2000 | |
1 | PF stretch | 791.4 | Ar | IR | Schnockel and Schunck, 1987 | ||
2 | Bend | 313.6 | Ar | IR | Schnockel and Schunck, 1987 | ||
3 | PS stretch | 726.27 | gas | IR | Beckers, Bogey, et al., 2001 | ||
3 | PS stretch | 720.2 | Ar | IR | Schnockel and Schunck, 1987 | ||
Additional references: Jacox, 1994, page 104; Jacox, 2003, page 142
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]
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]
Beckers, Bogey, et al., 2000
Beckers, H.; Bogey, M.; Breidung, J.; Burger, H.; Drean, P.; Paplewski, P.; Thiel, W.; Walters, A.,
FP=S in the gas-phase: Detection by rotationally resolved infrared and millimetre-wave spectra assisted by ab-initio calculations,
Phys. Chem. Chem. Phys., 2000, 2, 11, 2467, https://doi.org/10.1039/b002625p
. [all data]
Schnockel and Schunck, 1987
Schnockel, H.; Schunck, S.,
Matrix-IR-Untersuchungen von molekularem SPF,
Z. Anorg. Allg. Chem., 1987, 552, 9, 163, https://doi.org/10.1002/zaac.19875520918
. [all data]
Beckers, Bogey, et al., 2001
Beckers, H.; Bogey, M.; Breidung, J.; Burger, H.; Demaison, J.; Drean, P.; Paplewski, P.; Thiel, W.; Walters, A.,
Millimeter-Wave Spectroscopy, High-Resolution Infrared Spectrum, ab Initio Calculations, and Molecular Geometry of FPS,
J. Mol. Spectrosc., 2001, 210, 2, 213, https://doi.org/10.1006/jmsp.2001.8462
. [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]
Notes
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- 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 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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