trifluoromethyl hypofluorite
- Formula: CF4O
- Molecular weight: 104.0037
- CAS Registry Number: 373-91-1
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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.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -182.80 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1969 |
| ΔfH°gas | -184.0 ± 2.5 | kcal/mol | Eqk | Levy and Kennedy, 1972 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 77.075 | 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. - 1500. | 1500. - 6000. |
|---|---|---|
| A | 12.39137 | 31.14030 |
| B | 35.60588 | -0.221705 |
| C | -25.99881 | 0.048242 |
| D | 6.671559 | -0.003458 |
| E | -0.170966 | -2.775861 |
| F | -188.4369 | -198.8408 |
| G | 81.58939 | 105.3587 |
| H | -182.8000 | -182.8000 |
| 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, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
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
=
+ CF4O
By formula: C2F6O2 = CF2O + CF4O
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 24.50 ± 0.70 | kcal/mol | Eqk | Levy and Kennedy, 1972 | gas phase |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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]
Levy and Kennedy, 1972
Levy, J.B.; Kennedy, R.C.,
Bistrifluoromethyl peroxide. I. Thermodynamics of the equilibrium with carbonyl fluoride and trifluoromethyl hypofluorite,
J. Am. Chem. Soc., 1972, 94, 3302-3305. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References
- 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 ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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