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
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -159.3 ± 0.8 | kcal/mol | Eqk | Wu, Pickard, et al., 1975 | Reanalyzed by Kolesov and Papina, 1983, Original value = -159.1 ± 0.5 kcal/mol; Spectrophotometery at 298.15°K |
Phase change 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 385. to 386. | K | N/A | PCR Inc., 1990 | BS |
| Tboil | 386. | K | N/A | Emeleus and Hazeldine, 1949 | Uncertainty assigned by TRC = 2. K; TRC |
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° | 16.6 ± 0.5 | kcal/mol | Eqk | Wu, Pickard, et al., 1975 | gas phase; Spectrophotometery at 298.15°K |
References
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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]
PCR Inc., 1990
PCR Inc.,
Research Chemicals Catalog 1990-1991, PCR Inc., Gainesville, FL, 1990, 1. [all data]
Emeleus and Hazeldine, 1949
Emeleus, H.J.; Hazeldine, R.N.,
Organometallic Fluorine Compounds I. The Synthesis of Trifluoromethyl and Pentafluoroethyl Mercurides,
J. Chem. Soc., 1949, 1949, 2948. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, References
- Symbols used in this document:
Tboil Boiling point 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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