HSiOH

Formula: H₂OSi
Molecular weight: 46.1008
CAS Registry Number: 83892-34-6
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Data at other public NIST sites:
- Gas Phase Kinetics Database
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Gas phase ion energetics data

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Data evaluated by: Edward P. Hunter and Sharon G. Lias

Quantity	Value	Units	Method	Reference	Comment
Proton affinity (review)	201.	kcal/mol	N/A	Hunter and Lias, 1998	at Si
Quantity	Value	Units	Method	Reference	Comment
Gas basicity	193.0	kcal/mol	N/A	Hunter and Lias, 1998	at Si

Vibrational and/or electronic energy levels

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Data compiled by: Marilyn E. Jacox

State: X

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


a'	1	OH stretch	3661	Ar	IR	Ismail, Hauge, et al., 1982 Withnall and Andrews, 1985
	2	SiH stretch	1882	Ar	IR	Ismail, Hauge, et al., 1982 Withnall and Andrews, 1985
	2	SiH stretch	1847	Ar	IR	Ismail, Hauge, et al., 1982 Withnall and Andrews, 1985
	3	HSiO bend	937	Ar	IR	Ismail, Hauge, et al., 1982 Withnall and Andrews, 1985
	4	SiO stretch	851	Ar	IR	Ismail, Hauge, et al., 1982 Withnall and Andrews, 1985
	5	SiOH bend	723	Ar	IR	Ismail, Hauge, et al., 1982 Withnall and Andrews, 1985
a	6	Torsion	595	Ar	IR	Ismail, Hauge, et al., 1982 Withnall and Andrews, 1985

Additional references: Jacox, 1994, page 146

References

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes

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]

Ismail, Hauge, et al., 1982
Ismail, Z.K.; Hauge, R.H.; Fredin, L.; Kauffman, J.W.; Margrave, J.L., Matrix isolation studies of the reactions of silicon atoms. I. Interaction with water: The infrared spectrum of hydroxysilylene HSiOH, J. Chem. Phys., 1982, 77, 4, 1617, https://doi.org/10.1063/1.444082 . [all data]

Withnall and Andrews, 1985
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]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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