Carbonyl fluoride
- Formula: CFO
- Molecular weight: 47.0085
- CAS Registry Number: 1871-24-5
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Gas phase ion energetics 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:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
View reactions leading to CFO+ (ion structure unspecified)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°(+) ion | 178.1 ± 2.3 | kcal/mol | N/A | N/A | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH(+) ion,0K | 178.0 ± 2.0 | kcal/mol | N/A | N/A |
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 2.90 ± 0.24 | D-EA | Karpas and Klein, 1977 | From HCOF. G3MP2B3 calculations indicate an EA of ca. 2.3 eV, HOF(A-) 7 kcal/mol less stable.; B |
| 3.30001 | EIAE | Harland and Thynne, 1970 | From (CF3)2CO; B |
| 3.02 ± 0.16 | R-A | Thynne and MacNeil, 1970 | From CF2O; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.30 ± 0.10 | DER | Buckley, Johnson, et al., 1995 | LL |
| ≤9.7 | PI | Buckley, Johnson, et al., 1995 | LL |
| 8.76 ± 0.32 | PE | Dyke, Jonathan, et al., 1981 | LLK |
| 11.26 ± 0.01 | PE | Buckley, Johnson, et al., 1995 | Vertical value; LL |
| 11.16 ± 0.03 | PI | Buckley, Johnson, et al., 1995 | Vertical value; LL |
References
Go To: Top, 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.
Karpas and Klein, 1977
Karpas, Z.; Klein, F.S.,
The gas phase ion chemistry of carbonyl compounds: Formyl fluoride and a binary mixture of H2CO-F2CO or H2CO-Cl2CO,
Int. J. Mass Spectrom. Ion Phys., 1977, 24, 137. [all data]
Harland and Thynne, 1970
Harland, P.; Thynne, J.C.J.,
Positive and negative ion formation in hexafluoroacetone by electron impact,
J. Phys. Chem., 1970, 74, 52. [all data]
Thynne and MacNeil, 1970
Thynne, J.C.J.; MacNeil, K.A.G.,
Ionisation and dissociation of carbonyl fluoride and trifluoromethyl hypofluorite by electron impact,
Intern. J. Mass Spectrom. Ion Phys., 1970, 5, 95. [all data]
Buckley, Johnson, et al., 1995
Buckley, T.J.; Johnson, R.D.; Huie, R.E.; Zhang, Z.; Kuo, S.C.; Klemm, R.B.,
Ionization energies, appearance energies, and thermochemistry of CF2O and FCO,
J. Phys. Chem., 1995, 99, 4879. [all data]
Dyke, Jonathan, et al., 1981
Dyke, J.; Jonathan, N.; Morris, A.; Winter, M.,
First ionization potential of the FCO (X2A') radical studied using photoelectron spectroscopy,
J. Chem. Soc. Faraday Trans. 2, 1981, 77, 667. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity ΔfH(+) ion,0K Enthalpy of formation of positive ion at 0K - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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