H2SiO


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

HOSi- + Hydrogen cation = H2OSi

By formula: HOSi- + H+ = H2OSi

Quantity Value Units Method Reference Comment
Δr1521. ± 34.kJ/molG+TSGronert, O'Hair, et al., 1990gas phase; Between acetone, nitromethane
Quantity Value Units Method Reference Comment
Δr1490. ± 33.kJ/molIMRBGronert, O'Hair, et al., 1990gas phase; Between acetone, nitromethane

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

Quantity Value Units Method Reference Comment
Proton affinity (review)841.kJ/molN/AHunter and Lias, 1998at O; HL
Proton affinity (review)328.kJ/molN/AHunter and Lias, 1998at Si; HL
Quantity Value Units Method Reference Comment
Gas basicity808.5kJ/molN/AHunter and Lias, 1998at O; HL
Gas basicity295.5kJ/molN/AHunter and Lias, 1998at Si; HL

De-protonation reactions

HOSi- + Hydrogen cation = H2OSi

By formula: HOSi- + H+ = H2OSi

Quantity Value Units Method Reference Comment
Δr1521. ± 34.kJ/molG+TSGronert, O'Hair, et al., 1990gas phase; Between acetone, nitromethane; B
Quantity Value Units Method Reference Comment
Δr1490. ± 33.kJ/molIMRBGronert, O'Hair, et al., 1990gas phase; Between acetone, nitromethane; B

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 1202 Ar IR Withnall and Andrews, 1985
Withnall and Andrews, 1985, 2
SIH2 deform. 697 Ar IR Withnall and Andrews, 1985, 2

Additional references: Jacox, 1994, page 145; Jacox, 1998, page 226; Bailleux, Bogey, et al., 1994; Bogey, Delcroix, et al., 1996


References

Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, NIST Free Links, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Gronert, O'Hair, et al., 1990
Gronert, S.; O'Hair, R.A.J.; Prodnuk, S.; Suzle, D.; Damrauer, R.; DePuy, C.H., Gas-Phase Chemistry of the Silaformyl Anion, HSiO-, J. Am. Chem. Soc., 1990, 112, 3, 997, https://doi.org/10.1021/ja00159a016 . [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]

Withnall and Andrews, 1985
Withnall, R.; Andrews, L., Infrared spectroscopic evidence for silicon-oxygen double bonds: silanone and the silanoic and silicic acid molecules, J. Am. Chem. Soc., 1985, 107, 8, 2567, https://doi.org/10.1021/ja00294a070 . [all data]

Withnall and Andrews, 1985, 2
Withnall, R.; Andrews, L., Matrix reactions of silane and oxygen atoms. Infrared spectroscopic evidence for the silanol, silanone, and silanoic and silicic acid molecules, J. Phys. Chem., 1985, 89, 15, 3261, https://doi.org/10.1021/j100261a019 . [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]

Jacox, 1998
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules: supplement A, J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017 . [all data]

Bailleux, Bogey, et al., 1994
Bailleux, S.; Bogey, M.; Demuynck, C.; Destombes, J.-L.; Walters, A., Millimeter-wave rotational spectrum of H2SiO, J. Chem. Phys., 1994, 101, 4, 2729, https://doi.org/10.1063/1.467654 . [all data]

Bogey, Delcroix, et al., 1996
Bogey, M.; Delcroix, B.; Walters, A.; Guillemin, J.-C., Experimentally Determined Structure of H2SiO by Rotational Spectroscopy and Isotopic Substitution, J. Mol. Spectrosc., 1996, 175, 2, 421, https://doi.org/10.1006/jmsp.1996.0048 . [all data]


Notes

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