Phosphoryl fluoride
- Formula: F3OP
- Molecular weight: 103.9684
- IUPAC Standard InChIKey: FFUQCRZBKUBHQT-UHFFFAOYSA-N
- CAS Registry Number: 13478-20-1
- 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: Phosphorus oxyfluoride; Phosphoryl trifluoride; Trifluorophosphine oxide; Trifluorophosphorus oxide; POF3; Phosphoric trifluoride
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, 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 | -299.773 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1969 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 68.215 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in December, 1969 |
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 1100. | 1100. to 6000. |
---|---|---|
A | 9.591800 | 25.57560 |
B | 36.42980 | 0.143753 |
C | -31.80839 | -0.029027 |
D | 10.00420 | 0.002006 |
E | -0.128868 | -1.608540 |
F | -304.4240 | -311.8360 |
G | 69.56011 | 92.55129 |
H | -299.7729 | -299.7729 |
Reference | Chase, 1998 | Chase, 1998 |
Comment | Data last reviewed in December, 1969 | Data last reviewed in December, 1969 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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.
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
By formula: F- + F3OP = (F- • F3OP)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 47.9 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1985 | 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° | 48.0 ± 9.0 | kcal/mol | IMRB | Rhyne and Dillard, 1971 | gas phase; Fluoride Affinity: SF4>F3PO>SF5. Orignal value 32±10, now reval. with new affinities; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 26. | cal/mol*K | N/A | Larson and McMahon, 1985 | gas phase; switching reaction,Thermochemical ladder(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 40.1 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1985 | 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 |
By formula: CN- + F3OP = (CN- • F3OP)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 23.5 ± 1.0 | kcal/mol | IMRE | Larson, Szulejko, et al., 1988 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 30. | cal/mol*K | N/A | Larson, Szulejko, et al., 1988 | gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 14.60 ± 0.50 | kcal/mol | IMRE | Larson, Szulejko, et al., 1988 | gas phase; B,M |
By formula: Cl- + F3OP = (Cl- • F3OP)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 13.9 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1985 | gas phase; B,M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 21. | cal/mol*K | N/A | Larson and McMahon, 1985 | gas phase; switching reaction,Thermochemical ladder(Cl-)t-C4H9OH, Entropy change calculated or estimated; M |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 7.6 ± 2.0 | kcal/mol | IMRE | Larson and McMahon, 1985 | gas phase; B,M |
Gas phase ion energetics data
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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 12.76 ± 0.01 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 165.9 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 158.7 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
13.34 | EI | Neskovic, Miletic, et al., 1983 | LBLHLM |
12.77 ± 0.04 | PE | Basset and Lloyd, 1972 | LLK |
12.75 | PE | Frost, Herring, et al., 1971 | LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
FOP+ | 13.53 | F2- | EI | Neskovic, Miletic, et al., 1983 | LBLHLM |
F2OP+ | 13.34 | F | EI | Neskovic, Miletic, et al., 1983 | LBLHLM |
F2OP+ | 11.69 | F- | EI | Neskovic, Miletic, et al., 1983 | LBLHLM |
OP+ | 16.83 | F-+F2 | EI | Neskovic, Miletic, et al., 1983 | LBLHLM |
References
Go To: Top, Gas phase thermochemistry data, Reaction 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]
Larson and McMahon, 1985
Larson, J.W.; McMahon, T.B.,
Fluoride and chloride affinities of the main group oxides, fluorides, oxofluorides, and alkyls. Quantitative scales of lewis acidities from ICR halide exchange equilibria,
J. Am. Chem. Soc., 1985, 107, 766. [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]
Rhyne and Dillard, 1971
Rhyne, T.C.; Dillard, J.G.,
Reactions of gaseous inorganic negative ions: III. SF6- with POF3 and PSF3,
Int. J. Mass Spectrom. Ion Phys., 1971, 7, 371. [all data]
Arshadi, Yamdagni, et al., 1970
Arshadi, M.; Yamdagni, R.; Kebarle, P.,
Hydration of Halide Negative Ions in the Gas Phase. II. Comparison of Hydration Energies for the Alkali Positive and Halide Negative Ions,
J. Phys. Chem., 1970, 74, 7, 1475, https://doi.org/10.1021/j100702a014
. [all data]
Larson, Szulejko, et al., 1988
Larson, J.W.; Szulejko, J.E.; McMahon, T.B.,
Gas Phase Lewis Acid-Base Interactions. An Experimental Determination of Cyanide Binding Energies From Ion Cyclotron Resonance and High-Pressure Mass Spectrometric Equilibrium Measurements.,
J. Am. Chem. Soc., 1988, 110, 23, 7604, https://doi.org/10.1021/ja00231a004
. [all data]
Payzant, Yamdagni, et al., 1971
Payzant, J.D.; Yamdagni, R.; Kebarle, P.,
Hydration of CN-, NO2-, NO3-, and HO- in the gas phase,
Can. J. Chem., 1971, 49, 3308. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Neskovic, Miletic, et al., 1983
Neskovic, O.; Miletic, M.; Veljkovic, M.; Golobocantin, D.; Zmbov, K.F.,
Ionization and fragmentation of phosphorous oxyfluoride by electron impact,
Int. J. Mass Spectrom. Ion Processes, 1983, 47, 141. [all data]
Basset and Lloyd, 1972
Basset, P.J.; Lloyd, D.R.,
Photoelectron spectra of halides. Part III. Trifluorides and oxide trifluorides of nitrogen and phosphorus, and phosphorus oxide trichloride,
J. Chem. Soc. Dalton Trans., 1972, 248. [all data]
Frost, Herring, et al., 1971
Frost, D.C.; Herring, F.G.; Mitchell, K.A.R.; Stenhouse, I.A.,
Photoelectron spectra and electronic structures of trifluoramine oxide and trifluorophosphine oxide,
J. Am. Chem. Soc., 1971, 93, 1596. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy 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 ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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