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Ethyne, fluoro-


Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
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 C2HF+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)11.26eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)164.kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity158.1kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
11.26PEBieri, Schmelzer, et al., 1980LLK
11.5 ± 0.1EIKloster-Jensen, Pascual, et al., 1970RDSH
11.26PEHaink, Heilbronner, et al., 1970RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CF+17.0 ± 0.1CHEIKloster-Jensen, Pascual, et al., 1970RDSH
CH+19.2 ± 0.2CFEIKloster-Jensen, Pascual, et al., 1970RDSH

De-protonation reactions

C2F- + Hydrogen cation = Ethyne, fluoro-

By formula: C2F- + H+ = C2HF

Quantity Value Units Method Reference Comment
Deltar<368. ± 19.kcal/molD-EAThynne and MacNiel, 1971gas phase; From CH2=CF2; B
Quantity Value Units Method Reference Comment
Deltar<360. ± 19.kcal/molH-TSThynne and MacNiel, 1971gas phase; From CH2=CF2; B

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.

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Bieri, Schmelzer, et al., 1980
Bieri, G.; Schmelzer, A.; Asbrink, L.; Jonsson, M., Fluorine and the fluoroderivatives of acetylene and diacetylene studied by 30.4 nm He(II) photoelectron spectroscopy, Chem. Phys., 1980, 49, 213. [all data]

Kloster-Jensen, Pascual, et al., 1970
Kloster-Jensen, E.; Pascual, C.; Vogt, J., Mass spectrometric studies of mono- and di-haloacetylenes,, Helv. Chim. Acta, 1970, 53, 2109. [all data]

Haink, Heilbronner, et al., 1970
Haink, H.J.; Heilbronner, E.; Hornung, V.; KlosterJensen, E., Die Photoelektron-Spektren der Monohalogenacetylene, Helv. Chim. Acta, 1970, 53, 1073. [all data]

Thynne and MacNiel, 1971
Thynne, J.C.J.; MacNiel, K.A.G., Negative ion formation by ethylene and 1,1-difluoroethylene, J. Phys. Chem., 1971, 75, 2584. [all data]


Notes

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