Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

Dioxosilane


Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Vibrational and/or electronic energy levels, References, Notes

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

Quantity Value Units Method Reference Comment
Deltafgas-305.43kJ/molReviewChase, 1998Data last reviewed in June, 1967
Quantity Value Units Method Reference Comment
gas,1 bar228.98J/mol*KReviewChase, 1998Data last reviewed in June, 1967

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 4500. - 6000.
A 61.55710
B 0.446596
C -0.090267
D 0.006247
E -3.664591
F -333.4418
G 289.4972
H -305.4324
ReferenceChase, 1998
Comment Data last reviewed in June, 1967

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, IR Spectrum, Vibrational and/or electronic energy levels, References, Notes

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

Quantity Value Units Method Reference Comment
Deltafliquid-902.66kJ/molReviewChase, 1998Data last reviewed in June, 1967
Quantity Value Units Method Reference Comment
liquid,1 bar47.92J/mol*KReviewChase, 1998Data last reviewed in June, 1967

Liquid Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 1996. - 4500.
A 85.77200
B -0.000016
C 0.000004
D -3.809081×10-7
E -0.000017
F -952.8700
G 113.3440
H -902.6610
ReferenceChase, 1998
Comment Data last reviewed in June, 1967

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, IR Spectrum, Vibrational and/or electronic energy levels, References, Notes

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

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (bar)
    T = temperature (K)

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) A B C Reference Comment
2005. - 2500.7.8206420008.56858.883Stull, 1947Coefficents calculated by NIST from author's data.

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Vibrational and/or electronic energy levels, References, Notes

Data compiled by: Coblentz Society, Inc.


Vibrational and/or electronic energy levels

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, References, Notes

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

Piu 2 Bend 272.5 Ar IR Andrews and McCluskey, 1992
Sigmau+ 3 Asym. stretch 1416.4 Ar IR Schnockel, 1978
Schnockel, 1980
Andrews and McCluskey, 1992

Additional references: Jacox, 1994, page 86


References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Vibrational and/or electronic energy levels, Notes

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

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Andrews and McCluskey, 1992
Andrews, L.; McCluskey, M., Bending modes of SiO2 and GeO2 in solid argon, J. Mol. Spectrosc., 1992, 154, 1, 223, https://doi.org/10.1016/0022-2852(92)90042-M . [all data]

Schnockel, 1978
Schnockel, H., IR-spektroskopischer Nachweis von molekularem SiO2, Angew. Chem., 1978, 90, 8, 638, https://doi.org/10.1002/ange.19780900821 . [all data]

Schnockel, 1980
Schnockel, H., Matrixreaktionen von SiO. IR-spektroskopischer Nachweis der Molekeln SiO2 und OSiCl2, Z. Anorg. Allg. Chem., 1980, 460, 1, 37, https://doi.org/10.1002/zaac.19804600104 . [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

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Vibrational and/or electronic energy levels, References