dimethyloxosilane


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

De-protonation reactions

C2H5OSi- + Hydrogen cation = dimethyloxosilane

By formula: C2H5OSi- + H+ = C2H6OSi

Quantity Value Units Method Reference Comment
Δr363.6 ± 4.1kcal/molG+TSDamrauer and Krempp, 1990gas phase; between CF3CH2OH and CH3CHO in acidity
Δr363.7 ± 4.1kcal/molG+TSFroelicher, Freiser, et al., 1984gas phase; Between aniline, CF3CH2OH in acidity
Quantity Value Units Method Reference Comment
Δr356.5 ± 4.0kcal/molIMRBDamrauer and Krempp, 1990gas phase; between CF3CH2OH and CH3CHO in acidity
Δr356.6 ± 4.0kcal/molIMRBFroelicher, Freiser, et al., 1984gas phase; Between aniline, CF3CH2OH in acidity

Vibrational and/or electronic energy levels

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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: Marilyn E. Jacox

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

Si=O stretch 1209.6 Ar IR Arrington, West, et al., 1983
Withnall and Andrews, 1986
Withnall and Andrews, 1988

Additional references: Jacox, 1994, page 416


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.

Damrauer and Krempp, 1990
Damrauer, R.; Krempp, M., Gas Phase Ion-Molecule Chemistry of Methoxy-Substituted Silanes: Collision Induced Decomposition of Siloxide Ions Leading to Anions of Silaacetaldehyde and Methyl Silaformate, Organomet., 1990, 9, 4, 999, https://doi.org/10.1021/om00118a015 . [all data]

Froelicher, Freiser, et al., 1984
Froelicher, S.W.; Freiser, B.S.; Squires, R.R., Dimethylsilanone Enolate, J. Am. Chem. Soc., 1984, 106, 22, 6863, https://doi.org/10.1021/ja00334a077 . [all data]

Arrington, West, et al., 1983
Arrington, C.A.; West, R.; Michl, J., On the proposed thermal interconversion of matrix-isolated dimethylsilylene and 1-methylsilene: their reactions with oxygen atom donors, J. Am. Chem. Soc., 1983, 105, 19, 6176, https://doi.org/10.1021/ja00357a048 . [all data]

Withnall and Andrews, 1986
Withnall, R.; Andrews, L., Infrared spectroscopic evidence for silicon-oxygen double bonds: methyl- and dimethylsilanones in solid argon, J. Am. Chem. Soc., 1986, 108, 25, 8118, https://doi.org/10.1021/ja00285a054 . [all data]

Withnall and Andrews, 1988
Withnall, R.; Andrews, L., Matrix reactions of methylsilanes and oxygen atoms, J. Phys. Chem., 1988, 92, 3, 594, https://doi.org/10.1021/j100314a006 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]


Notes

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