Methane, trifluoroiodo-

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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:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
B - John E. Bartmess

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Individual Reactions

Methyl cation + Methane, trifluoroiodo- = (Methyl cation • Methane, trifluoroiodo-)

By formula: CH3+ + CF3I = (CH3+ • CF3I)

Quantity Value Units Method Reference Comment
Δr251.kJ/molPHPMSMcMahon, Heinis, et al., 1988gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 202. kJ/mol; Foster, Williamson, et al., 1974; M

Iodine + Chlorotrifluoromethane = Methane, trifluoroiodo- + Iodine monochloride

By formula: I2 + CClF3 = CF3I + ClI

Quantity Value Units Method Reference Comment
Δr72.3 ± 1.1kJ/molEqkLord, Goy, et al., 1967gas phase; Reanalyzed by Cox and Pilcher, 1970, Original value = 71.55 ± 0.71 kJ/mol; ALS

Iodine + Bromotrifluoromethane = Methane, trifluoroiodo- + iodine bromide

By formula: I2 + CBrF3 = CF3I + BrI

Quantity Value Units Method Reference Comment
Δr40.0 ± 0.1kJ/molEqkLord, Goy, et al., 1967gas phase; ALS

Chlorine anion + Methane, trifluoroiodo- = CClF3I-

By formula: Cl- + CF3I = CClF3I-

Quantity Value Units Method Reference Comment
Δr98.74 ± 0.84kJ/molTDAsBogdanov and McMahon, 2006gas phase; B

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.

McMahon, Heinis, et al., 1988
McMahon, T.; Heinis, T.; Nicol, G.; Hovey, J.K.; Kebarle, P., Methyl Cation Affinities, J. Am. Chem. Soc., 1988, 110, 23, 7591, https://doi.org/10.1021/ja00231a002 . [all data]

Foster, Williamson, et al., 1974
Foster, M.S.; Williamson, A.D.; Beauchamp, J.L., Photoionization mass spectrometry of trans-azomethane, Int. J. Mass Spectrom. Ion Phys., 1974, 15, 429. [all data]

Lord, Goy, et al., 1967
Lord, A.; Goy, C.A.; Pritchard, H.O., The heats of formation of trifluoromethyl chloride and bromide, J. Phys. Chem., 1967, 71, 2705-2707. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Bogdanov and McMahon, 2006
Bogdanov, B.; McMahon, T.B., Gas phase S(N)2 reactions of halide ions with trifluoromethyl halides: Front- and back-side attack vs. complex formation, J. Phys. Chem. A, 2006, 110, 4, 1350-1363, https://doi.org/10.1021/jp0541011 . [all data]


Notes

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