Ethene, tetrafluoro-
- Formula: C2F4
- Molecular weight: 100.0150
- IUPAC Standard InChIKey: BFKJFAAPBSQJPD-UHFFFAOYSA-N
- CAS Registry Number: 116-14-3
- 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: Ethylene, tetrafluoro-; Perfluoroethene; Perfluoroethylene; Tetrafluoroethene; Tetrafluoroethylene; TFE; C2F4; Fluoroplast 4; Tetrafluorethylene; 1,1,2,2-Tetrafluoroethylene; Tetrafluorethene; Ethene, 1,1,2,2-tetrafluoro-
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase ion energetics data
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
L - Sharon G. Lias
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C2F4+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.14 ± 0.07 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.114 ± 0.010 | PI | Buckley, Johnson, et al., 1995 | LL |
10.14 ± 0.02 | PE | Bieri, Niessen, et al., 1981 | LLK |
10.14 | PE | Sell, Mintz, et al., 1978 | LLK |
10.32 | PE | Cullen, Frost, et al., 1972 | LLK |
10.10 | PE | Brundle, Robin, et al., 1972 | LLK |
10.11 | PE | Lake and Thompson, 1970 | RDSH |
10.12 ± 0.01 | PI | Walter, Lifshitz, et al., 1969 | RDSH |
10.12 | PI | Bralsford, Harris, et al., 1960 | RDSH |
10.69 ± 0.02 | PE | Bieri, Niessen, et al., 1981 | Vertical value; LLK |
10.56 ± 0.02 | PE | Sell and Kuppermann, 1979 | Vertical value; LLK |
10.52 | PE | Robin, Taylor, et al., 1973 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CF+ | 13.76 ± 0.01 | CF3 | PI | Walter, Lifshitz, et al., 1969 | RDSH |
CF2+ | 15.2 ± 0.1 | CF2 | EI | Syrvatka, Bel'ferman, et al., 1971 | LLK |
CF2+ | 14.63 ± 0.04 | CF2 | PI | Walter, Lifshitz, et al., 1969 | RDSH |
CF2+ | 15.0 ± 0.3 | CF2 | EI | Zmbov, Uy, et al., 1968 | RDSH |
CF2+ | 15.26 ± 0.05 | CF2 | EI | Pottie, 1965 | RDSH |
CF3+ | 13.70 ± 0.02 | CF | PI | Walter, Lifshitz, et al., 1969 | RDSH |
C2F3+ | 15.84 ± 0.02 | F | PI | Walter, Lifshitz, et al., 1969 | RDSH |
F+ | 29.5 ± 1.0 | ? | EI | Tikhomirov and Komarov, 1966 | RDSH |
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.
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]
Bieri, Niessen, et al., 1981
Bieri, G.; Niessen, W.V.; Asbrink, L.; Svensson, A.,
The He(II) photoelectron spectra of the fluorosubstituted ethylenes and their analysis by the green's function method,
Chem. Phys., 1981, 60, 61. [all data]
Sell, Mintz, et al., 1978
Sell, J.A.; Mintz, D.M.; Kupperman, A.,
Photoelectron angular distributions of carbon-carbon π electrons in ethylene, benzene, and their fluorinated derivatives,
Chem. Phys. Lett., 1978, 58, 601. [all data]
Cullen, Frost, et al., 1972
Cullen, W.R.; Frost, D.C.; Leeder, W.R.,
The ultraviolet and photoelectron spectra of some unsaturated fluorocarbon derivatives,
J. Fluorine Chem., 1972, 1, 227. [all data]
Brundle, Robin, et al., 1972
Brundle, C.R.; Robin, M.B.; Kuebler, N.A.; Basch, H.,
Perfluoro effect in photoelectron spectroscopy. I. Nonaromatic molecules,
J. Am. Chem. Soc., 1972, 94, 1451. [all data]
Lake and Thompson, 1970
Lake, R.F.; Thompson, H.,
Photoelectron spectra of halogenated ethylenes,
Proc. Roy. Soc. (London), 1970, A315, 323. [all data]
Walter, Lifshitz, et al., 1969
Walter, T.A.; Lifshitz, C.; Chupka, W.A.; Berkowitz, J.,
Mass-spectrometric study of the photoionization of C2F4 and CF4,
J. Chem. Phys., 1969, 51, 3531. [all data]
Bralsford, Harris, et al., 1960
Bralsford, R.; Harris, P.V.; Price, W.C.,
The effect of fluorine on the electronic spectra and ionization potentials of molecules,
Proc. Roy. Soc. (London), 1960, A258, 459. [all data]
Sell and Kuppermann, 1979
Sell, J.A.; Kuppermann, A.,
Variable angle photoelectron spectroscopy of the fluoroethylenes,
J. Chem. Phys., 1979, 71, 4703. [all data]
Robin, Taylor, et al., 1973
Robin, M.B.; Taylor, G.N.; Kuebler, N.A.; Bach, R.D.,
Planarity of the carbon skeleton in various alkylated olefins,
J. Org. Chem., 1973, 38, 1049. [all data]
Syrvatka, Bel'ferman, et al., 1971
Syrvatka, B.G.; Bel'ferman, A.L.; Gil'burd, M.M.; Moin, F.B.,
Determination of the dissociation energy of the double bond in some fluorochloro-substituted ethylenes and their ions by electron bombardment,
J. Org. Chem. USSR, 1971, 7, 8, In original 9. [all data]
Zmbov, Uy, et al., 1968
Zmbov, K.F.; Uy, M.; Margrave, J.L.,
Mass spectrometric study of the high-temperature equilibrium C2F4 = 2CF2 and the heat of formation of the CF2 radical,
J. Am. Chem. Soc., 1968, 90, 5090. [all data]
Pottie, 1965
Pottie, R.F.,
Ionization potential and heat of formation of the difluoromethylene radical,
J. Chem. Phys., 1965, 42, 2607. [all data]
Tikhomirov and Komarov, 1966
Tikhomirov, M.V.; Komarov, V.N.,
Effect of the surface on the mass spectrum of tetrafluoroethylene and the appearance potential of F+,
Zh. Fiz. Khim., 1966, 40, 1392, In original 751. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.