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2-Silaisobutene


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:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi

View reactions leading to C3H8Si+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)226.5kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity220.1kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
7.71 ± 0.03PEDyke, Josland, et al., 1982LBLHLM
8.0PEKoenig and McKenna, 1981LLK
7.5 ± 0.3DERGusel'nikov and Nametkin, 1979LLK
7.98 ± 0.01PEDyke, Josland, et al., 1982Vertical value; LBLHLM

De-protonation reactions

C3H7Si- + Hydrogen cation = 2-Silaisobutene

By formula: C3H7Si- + H+ = C3H8Si

Quantity Value Units Method Reference Comment
Deltar385.6 ± 5.1kcal/molG+TSDamrauer, DePuy, et al., 1986gas phase; Between H2O, MeOH; B
Quantity Value Units Method Reference Comment
Deltar379.0 ± 5.0kcal/molIMRBDamrauer, DePuy, et al., 1986gas phase; Between H2O, MeOH; 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.

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]

Dyke, Josland, et al., 1982
Dyke, J.M.; Josland, G.D.; Lewis, R.A.; Morris, A., Improved first ionization potential of the dimethylsilaethylene molecule obtained with high-temperature photoelectron spectroscopy, J. Phys. Chem., 1982, 86, 2913. [all data]

Koenig and McKenna, 1981
Koenig, T.; McKenna, W., First ionization band of 1,1-dimethylsilaethylene by transient photoelectron spectroscopy, J. Am. Chem. Soc., 1981, 103, 1212. [all data]

Gusel'nikov and Nametkin, 1979
Gusel'nikov, L.E.; Nametkin, N.S., 1,1-dimethyl-1-silaethylene. Heat of formation, ionization potential and the energy of the silicon-carbon «pi»-bond, J. Organomet. Chem., 1979, 169, 155. [all data]

Damrauer, DePuy, et al., 1986
Damrauer, R.; DePuy, C.H.; Davidson, I.M.T.; Hughes, K.J., Gas phase ion chemistry of dimethylsilene, Organometallics, 1986, 5, 2050. [all data]


Notes

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