CH radical anion


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: John E. Bartmess

Quantity Value Units Method Reference Comment
Δfgas476.35 ± 0.96kJ/molR-EAKasdan, Herbst, et al., 1975 
Δfgas633.46kJ/molEIAETrepka and Neuert, 1963From CH4

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: John E. Bartmess

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Individual Reactions

CH- + Hydrogen cation = Methylene

By formula: CH- + H+ = CH2

Quantity Value Units Method Reference Comment
Δr1615.2 ± 1.8kJ/molD-EAKasdan, Herbst, et al., 1975gas phase
Quantity Value Units Method Reference Comment
Δr1586.9 ± 2.2kJ/molH-TSKasdan, Herbst, et al., 1975gas phase

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 compiled by: John E. Bartmess

Protonation reactions

CH- + Hydrogen cation = Methylene

By formula: CH- + H+ = CH2

Quantity Value Units Method Reference Comment
Δr1615.2 ± 1.8kJ/molD-EAKasdan, Herbst, et al., 1975gas phase
Quantity Value Units Method Reference Comment
Δr1586.9 ± 2.2kJ/molH-TSKasdan, Herbst, et al., 1975gas phase

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.

Kasdan, Herbst, et al., 1975
Kasdan, A.; Herbst, E.; Lineberger, W.C., Laser photoelectron spectrometry of CH2-, Chem. Phys. Lett., 1975, 31, 78. [all data]

Trepka and Neuert, 1963
Trepka, L.v.; Neuert, H., Uber die Entstehenung von Negativen Ionen aus einigen Kohlenwasserstoffen und Alkoholen durch Elektronenstoss, Z. Naturfor., 1963, 18A, 1295. [all data]


Notes

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