Vinyl radical

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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.

Quantity Value Units Method Reference Comment
Δfgas299. ± 5.kJ/molN/ATsang, 1996 

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 by: Robert C. Dunbar

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

Chromium ion (1+) + Vinyl radical = (Chromium ion (1+) • Vinyl radical)

By formula: Cr+ + C2H3 = (Cr+ • C2H3)

Quantity Value Units Method Reference Comment
Δr247. ± 9.6kJ/molCIDTFisher and Armentrout, 1992 

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

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
B - John E. Bartmess

View reactions leading to C2H3+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)755.2kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity719.8kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Δf(+) ion1100. ± 10.kJ/molN/AN/A 
Quantity Value Units Method Reference Comment
ΔfH(+) ion,0K1100. ± 10.kJ/molN/AN/A 

Electron affinity determinations

EA (eV) Method Reference Comment
0.667 ± 0.024LPESErvin, Gronert, et al., 1990B
>0.39999IMRBLindinger, Albritton, et al., 1975B

Ionization energy determinations

IE (eV) Method Reference Comment
8.25PEBlush and Chen, 1992LL
≤8.59 ± 0.03PIBerkowitz, Mayhew, et al., 1988LL
8.7 ± 0.1DERReinke, Kraessig, et al., 1973LLK
8.95EILossing, 1971LLK

References

Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, 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.

Tsang, 1996
Tsang, W., Heats of Formation of Organic Free Radicals by Kinetic Methods in Energetics of Organic Free Radicals, Martinho Simoes, J.A.; Greenberg, A.; Liebman, J.F., eds., Blackie Academic and Professional, London, 1996, 22-58. [all data]

Fisher and Armentrout, 1992
Fisher, E.R.; Armentrout, P.B., Activation of Alkanes by Cr+: Unique Reactivity of Ground-State Cr+(6S) and Thermochemistry of Neutral and Ionic Chromium-Carbon Bonds, J. Am. Chem. Soc., 1992, 114, 6, 2039, https://doi.org/10.1021/ja00032a017 . [all data]

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]

Ervin, Gronert, et al., 1990
Ervin, K.M.; Gronert, S.; Barlow, S.E.; Gilles, M.K.; Harrison, A.G.; Bierbaum, V.M.; DePuy, C.H.; Lin, W.C., Bonds Strengths of Ethylene and Acetylene, J. Am. Chem. Soc., 1990, 112, 15, 5750, https://doi.org/10.1021/ja00171a013 . [all data]

Lindinger, Albritton, et al., 1975
Lindinger, W.; Albritton, A.L.; Fehsenfeld, F.C.; Ferguson, E.E., Reactions of O- with N2, N2O, SO2, NH3, CH4, C2H4, and C2H2- with O2 from 300K to relative kinetic energies of 2 eV, J. Chem. Phys., 1975, 63, 3238. [all data]

Blush and Chen, 1992
Blush, J.A.; Chen, P., Photoelectron spectrum of the vinyl radical. Downward revision of C2H3 ionization potential, J. Phys. Chem., 1992, 96, 4138. [all data]

Berkowitz, Mayhew, et al., 1988
Berkowitz, J.; Mayhew, C.A.; Ruscic, B., A photoionization study of the vinyl radical, J. Chem. Phys., 1988, 88, 7396. [all data]

Reinke, Kraessig, et al., 1973
Reinke, D.; Kraessig, R.; Baumgartel, H., Photoreactions of small organic molecules, Z. Naturforsch. A:, 1973, 28, 1021. [all data]

Lossing, 1971
Lossing, F.P., Free radicals by mass spectrometry. XLIII. Ionization potentials and ionic heats of formation for vinyl, allyl, and benzyl radicals, Can. J. Chem., 1971, 49, 357. [all data]


Notes

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