Silanol, trimethyl-


Phase change 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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
11.2306.AStephenson and Malanowski, 1987Based on data from 291. to 357. K.; AC
10.6324.IGrubb and Osthoff, 1953Based on data from 291. to 358. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
291. to 357.85.440201767.766-44.888Grubb and Osthoff, 1953Coefficents calculated by NIST from author's data.

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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C3H9OSi- + Hydrogen cation = Silanol, trimethyl-

By formula: C3H9OSi- + H+ = C3H10OSi

Quantity Value Units Method Reference Comment
Δr362.9 ± 4.6kcal/molG+TSAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH
Δr358.9 ± 4.1kcal/molG+TSDamrauer, Simon, et al., 1991gas phase; between pyrrole, CF3CH2OH
Quantity Value Units Method Reference Comment
Δr356.5 ± 4.5kcal/molIMRBAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH
Δr352.5 ± 4.0kcal/molIMRBDamrauer, Simon, et al., 1991gas phase; between pyrrole, CF3CH2OH

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)194.6kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity186.8kcal/molN/AHunter and Lias, 1998HL

De-protonation reactions

C3H9OSi- + Hydrogen cation = Silanol, trimethyl-

By formula: C3H9OSi- + H+ = C3H10OSi

Quantity Value Units Method Reference Comment
Δr362.9 ± 4.6kcal/molG+TSAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH; B
Δr358.9 ± 4.1kcal/molG+TSDamrauer, Simon, et al., 1991gas phase; between pyrrole, CF3CH2OH; B
Quantity Value Units Method Reference Comment
Δr356.5 ± 4.5kcal/molIMRBAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH; B
Δr352.5 ± 4.0kcal/molIMRBDamrauer, Simon, et al., 1991gas phase; between pyrrole, CF3CH2OH; 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.

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Grubb and Osthoff, 1953
Grubb, Willard T.; Osthoff, Robert C., Physical Properties of Organosilicon Compounds. II. Trimethylsilanol and Triethylsilanol, J. Am. Chem. Soc., 1953, 75, 9, 2230-2232, https://doi.org/10.1021/ja01105a061 . [all data]

Angelini, Johnson, et al., 1991
Angelini, G.; Johnson, C.E.; Brauman, J.I., Addition and Deprotonation in Reactions of Hydroxide Ion with a beta-Hydroxysilane, Int. J. Mass Spectrom. Ion Proc., 1991, 109, 1, https://doi.org/10.1016/0168-1176(91)85093-2 . [all data]

Damrauer, Simon, et al., 1991
Damrauer, R.; Simon, R.; Krempp, M., Effect of Substituents on the Gas-Phase Acidity of Silanols, J. Am. Chem. Soc., 1991, 113, 12, 4431, https://doi.org/10.1021/ja00012a009 . [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]


Notes

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