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Ethene, tetrafluoro-

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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 as indicated in comments:
B - John E. Bartmess
MS - José A. Martinho Simões
ALS - 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

Chlorine anion + Ethene, tetrafluoro- = C2ClF4-

By formula: Cl- + C2F4 = C2ClF4-

Quantity Value Units Method Reference Comment
Deltar>10.00kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; Entropy estimated. The experimental HOF of C2F4 has been quiestioned as being too positive: Curtiss, Raghavachari, et al., 7374, 11CHA/DEN; B
Quantity Value Units Method Reference Comment
Deltar2.55kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; Entropy estimated. The experimental HOF of C2F4 has been quiestioned as being too positive: Curtiss, Raghavachari, et al., 7374, 11CHA/DEN; B

Bromine anion + Ethene, tetrafluoro- = C2BrF4-

By formula: Br- + C2F4 = C2BrF4-

Quantity Value Units Method Reference Comment
Deltar7.10 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; The experimental HOF of C2F4 has been questioned as being too positive: Curtiss, Raghavachari, et al., 7374, 11CHA/DEN; B
Quantity Value Units Method Reference Comment
Deltar2.33 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; The experimental HOF of C2F4 has been questioned as being too positive: Curtiss, Raghavachari, et al., 7374, 11CHA/DEN; B

C7CrF4O5 (g) = Ethene, tetrafluoro- (g) + C5CrO5 (g)

By formula: C7CrF4O5 (g) = C2F4 (g) + C5CrO5 (g)

Quantity Value Units Method Reference Comment
Deltar19.7 ± 1.4kcal/molKinGWells, House, et al., 1994The reaction enthalpy relies on the measured activation energy and on the assumption of a negligible barrier for product recombination Wells, House, et al., 1994.; MS

C2ClF4- + 2Ethene, tetrafluoro- = C4ClF8-

By formula: C2ClF4- + 2C2F4 = C4ClF8-

Quantity Value Units Method Reference Comment
Deltar6.60 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B
Quantity Value Units Method Reference Comment
Deltar1.83 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B

C4ClF8- + 3Ethene, tetrafluoro- = C6ClF12-

By formula: C4ClF8- + 3C2F4 = C6ClF12-

Quantity Value Units Method Reference Comment
Deltar6.30 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B
Quantity Value Units Method Reference Comment
Deltar0.64 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B

C6ClF12- + 4Ethene, tetrafluoro- = C8ClF16-

By formula: C6ClF12- + 4C2F4 = C8ClF16-

Quantity Value Units Method Reference Comment
Deltar6.00 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B
Quantity Value Units Method Reference Comment
Deltar0.04 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B

C2BrF4- + 2Ethene, tetrafluoro- = C4BrF8-

By formula: C2BrF4- + 2C2F4 = C4BrF8-

Quantity Value Units Method Reference Comment
Deltar6.00 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B
Quantity Value Units Method Reference Comment
Deltar0.93 ± 0.50kcal/molTDAsHiraoka, Mochizuki, et al., 2008gas phase; B

Hydrogen bromide + Ethene, tetrafluoro- = 1-Bromo-1,1,2,2-tetrafluoroethane

By formula: HBr + C2F4 = C2HBrF4

Quantity Value Units Method Reference Comment
Deltar-32.92 ± 0.18kcal/molCmLacher, Lea, et al., 1950gas phase; Heat of hydrobromination at 367°K; ALS

1,2-Diiodotetrafluoroethane = Ethene, tetrafluoro- + Iodine

By formula: C2F4I2 = C2F4 + I2

Quantity Value Units Method Reference Comment
Deltar16.6 ± 0.5kcal/molEqkWu, Pickard, et al., 1975gas phase; Spectrophotometery at 298.15°K; ALS

Ethene, tetrafluoro- + Chlorine = Ethane, 1,2-dichloro-1,1,2,2-tetrafluoro-

By formula: C2F4 + Cl2 = C2Cl2F4

Quantity Value Units Method Reference Comment
Deltar-57.32 ± 0.20kcal/molCmLacher, McKinley, et al., 1949gas phase; Chlorination at 90 C; ALS

Ethene, tetrafluoro- + 2Hydrogen = 2carbon + 4hydrogen fluoride

By formula: C2F4 + 2H2 = 2C + 4HF

Quantity Value Units Method Reference Comment
Deltar-147.8 ± 1.1kcal/molChydNeugebauer and Margrave, 1956gas phase; ALS

Ethene, tetrafluoro- + Bromine = 1,2-Dibromotetrafluoroethane

By formula: C2F4 + Br2 = C2Br2F4

Quantity Value Units Method Reference Comment
Deltar-38.48kcal/molCmLacher, Casali, et al., 1956gas phase; Heat of bromination; ALS

Ethene, tetrafluoro- + 4sodium = 4sodium fluoride + 2Carbon

By formula: C2F4 + 4Na = 4FNa + 2C

Quantity Value Units Method Reference Comment
Deltar-385.0 ± 1.1kcal/molCmKolesov, Zenkov, et al., 1962gas phase; ALS

2Difluorochloromethane = Ethene, tetrafluoro- + 2Hydrogen chloride

By formula: 2CHClF2 = C2F4 + 2HCl

Quantity Value Units Method Reference Comment
Deltar29.06kcal/molKinEdwards and Small, 1965gas phase; Corrected for CODATA value of «DELTA»fH; ALS

2Ethene, tetrafluoro- = Cyclobutane, octafluoro-

By formula: 2C2F4 = C4F8

Quantity Value Units Method Reference Comment
Deltar-50.3kcal/molEqkAtkinson and Trenwith, 1953gas phase; At 527-800 °K; ALS

Ethene, tetrafluoro- + 2fluorine = 2Tetrafluoromethane

By formula: C2F4 + 2F2 = 2CF4

Quantity Value Units Method Reference Comment
Deltar-247.92kcal/molCcbDomalski and Armstrong, 1967solid phase; ALS

1,2-Dibromotetrafluoroethane = Ethene, tetrafluoro- + Bromine

By formula: C2Br2F4 = C2F4 + Br2

Quantity Value Units Method Reference Comment
Deltar38.478kcal/molCmLacher, Casali, et al., 1956gas phase; ALS

References

Go To: Top, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Hiraoka, Mochizuki, et al., 2008
Hiraoka, K.; Mochizuki, N.; Wada, A.; Okada, H.; Ichikawa, T.; Asakawa, D.; Yazawa, I., Gas-phase ion/molecule reactions in C2F4, Int. J. Mass Spectrom., 2008, 272, 1, 22-28, https://doi.org/10.1016/j.ijms.2007.12.013 . [all data]

Curtiss, Raghavachari, et al., 7374
Curtiss, L.A.; Raghavachari, K.; Redfern, P.C.; Pople, J.A., Assesment of Gaussian-3 and density Functional Theories for a larger experimental test set, J. Chem. Phys. 112 (2000), 7374. [all data]

Wells, House, et al., 1994
Wells, J.R.; House, P.G.; Weitz, E., J. Phys. Chem., 1994, 98, 8343. [all data]

Lacher, Lea, et al., 1950
Lacher, J.R.; Lea, K.R.; Walden, C.H.; Olson, G.G.; Park, J.D., Reaction heats of organic fluorine compounds. III. The vapor phase heats of hydrobromination of some simple fluoroolefins, J. Am. Chem. Soc., 1950, 72, 3231-3234. [all data]

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]

Lacher, McKinley, et al., 1949
Lacher, J.R.; McKinley, J.J.; Snow, C.M.; Michel, L.; Nelson, G.; Park, J.D., Reaction heats of organic fluorine compounds. I. Apparatus and the heat of chlorination of tetrafluoroethylene, J. Am. Chem. Soc., 1949, 71, 1330-1334. [all data]

Neugebauer and Margrave, 1956
Neugebauer, C.A.; Margrave, J.L., The heats of formation of tetrafluoroethylene, tetrafluoromethane and 1,1-difluoroethylene, J. Phys. Chem., 1956, 60, 1318-1321. [all data]

Lacher, Casali, et al., 1956
Lacher, J.R.; Casali, L.; Park, J.D., Reaction heats of organic halogen compounds V. The vapor phase bromination of tetrafluoroethylene and trifluorochloroethylene, J. Phys. Chem., 1956, 60, 608-610. [all data]

Kolesov, Zenkov, et al., 1962
Kolesov, V.P.; Zenkov, I.D.; Skuratov, S.M., The standard enthalpy of formation of tetrafluoroethylene, Russ. J. Phys. Chem. (Engl. Transl.), 1962, 36, 45-47. [all data]

Edwards and Small, 1965
Edwards, J.W.; Small, P.A., Kinetics of the pyrolysis of chlorodifluoromethane, Ind. Eng. Chem. Fundam., 1965, 4, 396-400. [all data]

Atkinson and Trenwith, 1953
Atkinson, B.; Trenwith, A.B., 424. The thermal decomposition of tetrafluorethylene, J. Chem. Soc. London, 1953, 2082-2087. [all data]

Domalski and Armstrong, 1967
Domalski, E.S.; Armstrong, G.T., The heats of combustion of polytetrafluoroethylene (teflon) and graphite in elemental fluorine, J. Res. NBS, 1967, 71, 105-118. [all data]


Notes

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