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Ethane, 1,1-difluoro-

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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
Deltafgas-497.0 ± 4.0kJ/molCcbKolesov, Shtekher, et al., 1968Reanalyzed by Kolesov and Papina, 1983, Original value = -490.8 ± 8.4 kJ/mol
Quantity Value Units Method Reference Comment
Deltacgas-1220. ± 8.4kJ/molCcbKolesov, Shtekher, et al., 1968 

Condensed 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: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
117.31300.Nakagawa, Hori, et al., 1993T = 276 to 360 K. p = 0.629 MPa.
118.4298.17Porichanskii, Ponomareva, et al., 1982T = 220 to 425 K. Unsmoothed experimental datum. Cp data given as 1.793 J/g*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 as indicated in comments:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
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 + Ethane, 1,1-difluoro- = (Chlorine anion bullet Ethane, 1,1-difluoro-)

By formula: Cl- + C2H4F2 = (Cl- bullet C2H4F2)

Quantity Value Units Method Reference Comment
Deltar62.3 ± 8.4kJ/molIMRELarson and McMahon, 1984gas phase; B,M
Quantity Value Units Method Reference Comment
Deltar95.0J/mol*KN/ALarson and McMahon, 1984gas phase; switching reaction(Cl-)CF3H, Entropy change calculated or estimated; Larson and McMahon, 1984, 2; M
Quantity Value Units Method Reference Comment
Deltar34. ± 8.4kJ/molIMRELarson and McMahon, 1984gas phase; B,M

3Hydrogen + Ethene, 1,1-dichloro-2,2-difluoro- = Ethane, 1,1-difluoro- + 2Hydrogen chloride

By formula: 3H2 + C2Cl2F2 = C2H4F2 + 2HCl

Quantity Value Units Method Reference Comment
Deltar-348.7kJ/molChydLacher, Kianpour, et al., 1956gas phase; At 410 K; ALS

2Hydrogen + Ethene, 2-chloro-1,1-difluoro- = Ethane, 1,1-difluoro- + Hydrogen chloride

By formula: 2H2 + C2HClF2 = C2H4F2 + HCl

Quantity Value Units Method Reference Comment
Deltar-258.4kJ/molChydLacher, Kianpour, et al., 1956gas phase; At 410 K; ALS

Ethane, 1,1-difluoro- + Iodine = Hydrogen iodide + 1-Bromo-1,1-difluoroethane

By formula: C2H4F2 + I2 = HI + C2H3BrF2

Quantity Value Units Method Reference Comment
Deltar51.0 ± 0.8kJ/molEqkPickard and Rodgers, 1977gas phase; ALS

Ethene, fluoro- + hydrogen fluoride = Ethane, 1,1-difluoro-

By formula: C2H3F + HF = C2H4F2

Quantity Value Units Method Reference Comment
Deltar-50.kJ/molEqkMoore, 1971gas phase; ALS

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Notes

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

Kolesov, Shtekher, et al., 1968
Kolesov, V.P.; Shtekher, S.N.; Martynov, A.M.; Skuratov, S.M., Standard enthalpy of formation of 1,1-difluoroethane, Russ. J. Phys. Chem. (Engl. Transl.), 1968, 42, 975-976. [all data]

Kolesov and Papina, 1983
Kolesov, V.P.; Papina, T.S., Thermochemistry of Haloethanes, Russ. Chem. Rev., 1983, 52, 425. [all data]

Nakagawa, Hori, et al., 1993
Nakagawa, S.; Hori, T.; Sato, H., and Watanabe K., Isobaric heat capacity for liquid 1-chloro-1,1-difluorethane and 1,1-difluoroethane, J. Chem. Eng. Data, 1993, 38(1), 70-74. [all data]

Porichanskii, Ponomareva, et al., 1982
Porichanskii, E.G.; Ponomareva, O.P.; Svetlichnyi, P.I., Study of the isobaric heat capacity of Freon 152A in a wide range of parametric conditions, Izv. Vyssh. Uchebn. Zaved., Energ., 1982, (3), 122-125. [all data]

Larson and McMahon, 1984
Larson, J.W.; McMahon, T.B., Hydrogen bonding in gas phase anions. An experimental investigation of the interaction between chloride ion and bronsted acids from ICR chloride exchange equilibria, J. Am. Chem. Soc., 1984, 106, 517. [all data]

Larson and McMahon, 1984, 2
Larson, J.W.; McMahon, T.B., Gas phase negative ion chemistry of alkylchloroformates, Can. J. Chem., 1984, 62, 675. [all data]

Lacher, Kianpour, et al., 1956
Lacher, J.R.; Kianpour, A.; Oetting, F.; Park, J.D., Reaction calorimetry. The hydrogenation of organic fluorides and chlorides, Trans. Faraday Soc., 1956, 52, 1500-1508. [all data]

Pickard and Rodgers, 1977
Pickard, J.M.; Rodgers, A.S., The kinetics and thermochemistry of the reaction of 1,1-difluoroethane with iodine. The difluoromethylene-hydrogen bond dissociation energy in 1,1-difluoroethane and the heat of formation of 1,1-difluoroethyl, J. Am. Chem. Soc., 1977, 99, 691-694. [all data]

Moore, 1971
Moore, L.O., Kinetics and thermodynamic data for the hydrogen fluoride addition to vinyl fluoride, Can. J. Chem., 1971, 49, 2471-2475. [all data]


Notes

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