Ethane, hexafluoro-
- Formula: C2F6
- Molecular weight: 138.0118
- IUPAC Standard InChIKey: WMIYKQLTONQJES-UHFFFAOYSA-N
- CAS Registry Number: 76-16-4
- 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: Perfluoroethane; F-116; Freon 116; Hexafluoroethane; C2F6; Fluorocarbon 116; UN 2193; Freon 1166SY; 1,1,1,2,2,2-Hexafluoroethane; R 116; Ethane, 1,1,1,2,2,2-hexafluoro-; HFC 116
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Condensed phase thermochemistry data
Go To: Top, 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: Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°liquid | 250.54 | J/mol*K | N/A | Pace and Aston, 1948 |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
131.3 | 195. | Pace and Aston, 1948 | T = 12 to 195 K. |
Gas phase ion energetics data
Go To: Top, Condensed 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 as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
13.6 | PE | Inghram, Hanson, et al., 1980 | LLK |
14.4 | PE | Inghram, Hanson, et al., 1980 | Vertical value; LLK |
14.6 | PE | Sauvageau, Doucet, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CF+ | 16.75 | ? | PI | Noutary, 1968 | RDSH |
CF+ | 16.1 | ? | EI | Smith and Kevan, 1967 | RDSH |
CF3+ | 13.62 ± 0.015 | CF3 | PI | Noutary, 1968 | RDSH |
C2F4+ | 20.7 | ? | EI | Smith and Kevan, 1967 | RDSH |
C2F5+ | 14.94 ± 0.05 | F | PIPECO | Simm, Danby, et al., 1975 | LLK |
C2F5+ | 15.46 ± 0.02 | F | PI | Noutary, 1968 | RDSH |
F+ | 22.6 | ? | EI | Bibby and Carter, 1963 | RDSH |
References
Go To: Top, Condensed phase 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.
Pace and Aston, 1948
Pace, E.L.; Aston, J.G.,
The thermodynamics of hexafluoroethane from calorimetric and spectroscopic data,
J. Am. Chem. Soc., 1948, 70, 566-570. [all data]
Inghram, Hanson, et al., 1980
Inghram, M.G.; Hanson, G.R.; Stockbauer, R.,
The fragmentation of C2F6,
Int. J. Mass Spectrom. Ion Phys., 1980, 33, 253. [all data]
Sauvageau, Doucet, et al., 1974
Sauvageau, P.; Doucet, J.; Gilbert, R.; Sandorfy, C.,
Vacuum ultraviolet and photoelectron spectra of fluoroethanes,
J. Chem. Phys., 1974, 61, 391. [all data]
Noutary, 1968
Noutary, C.J.,
Mass spectrometric study of some fluorocarbons and trifluoromethyl halides,
J.Res. NBS, 1968, 72A, 479. [all data]
Smith and Kevan, 1967
Smith, D.; Kevan, L.,
Dissociative charge exchange of rare-gas ions with C2F6 and C3F8,
J. Chem. Phys., 1967, 46, 1586. [all data]
Simm, Danby, et al., 1975
Simm, I.G.; Danby, C.J.; Eland, J.H.D.; Mansell, P.I.,
Translational energy release in the loss of fluorine atoms from the ions SF6+, CF4+ and C2F6+,
J. Chem. Soc., 1975, 426. [all data]
Bibby and Carter, 1963
Bibby, M.M.; Carter, G.,
Ionization and dissociation in some fluorocarbon gases,
J. Chem. Soc. Faraday Trans., 1963, 59, 2455. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,liquid Constant pressure heat capacity of liquid S°liquid Entropy of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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