1,2-Diiodotetrafluoroethane
- Formula: C2F4I2
- Molecular weight: 353.8240
- IUPAC Standard InChI: InChI=1S/C2F4I2/c3-1(4,7)2(5,6)8
- IUPAC Standard InChIKey: NZXVPCQHQVWOFD-UHFFFAOYSA-N
- CAS Registry Number: 354-65-4
- 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: 1,1,2,2-tetrafluoro-1,2-diiodoethane
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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.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -667. ± 3. | kJ/mol | Eqk | Wu, Pickard, et al., 1975 | Reanalyzed by Kolesov and Papina, 1983, Original value = -666. ± 2. kJ/mol; Spectrophotometery at 298.15°K |
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 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
=
+
By formula: C2F4I2 = C2F4 + I2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 69. ± 2. | kJ/mol | Eqk | Wu, Pickard, et al., 1975 | gas phase; Spectrophotometery at 298.15°K |
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 by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 10.11 ± 0.01 | PE | Chau and McDowell, 1976 | Vertical value |
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.
Wu, Pickard, et al., 1975
Wu, E.C.; Pickard, J.M.; Rodgers, A.S.,
Thermochemistry of the gas-phase reaction tetrafluoroethylene + iodine = 1,2-diiodoperfluoroethane. Heat of formation of 1,2-diiodoperfluoroethane and of iodoperfluoroethane,
J. Phys. Chem., 1975, 79, 1078-1081. [all data]
Kolesov and Papina, 1983
Kolesov, V.P.; Papina, T.S.,
Thermochemistry of Haloethanes,
Russ. Chem. Rev., 1983, 52, 425. [all data]
Chau and McDowell, 1976
Chau, F.T.; McDowell, C.A.,
Photoelectron spectra of 1,2-dibromo-1,1-difluoroethane, 1,2-bromochloroethane, and 1,2-dichloro-, 1,2-dibromo-, and 1,2-diiodotetrafluoroethane,
J. Phys. Chem., 1976, 80, 2923. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
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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