Silanol, trimethyl-
- Formula: C3H10OSi
- Molecular weight: 90.1964
- IUPAC Standard InChIKey: AAPLIUHOKVUFCC-UHFFFAOYSA-N
- CAS Registry Number: 1066-40-6
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Hydroxytrimethylsilane; Trimethylhydroxysilane; Trimethylsilanol
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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 |
---|---|---|---|---|
11.2 | 306. | A | Stephenson and Malanowski, 1987 | Based on data from 291. to 357. K.; AC |
10.6 | 324. | I | Grubb and Osthoff, 1953 | Based 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 357.8 | 5.44020 | 1767.766 | -44.888 | Grubb and Osthoff, 1953 | Coefficents 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- + =
By formula: C3H9OSi- + H+ = C3H10OSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 362.9 ± 4.6 | kcal/mol | G+TS | Angelini, Johnson, et al., 1991 | gas phase; Between CF2HCH2OH, CF3CH2OH |
ΔrH° | 358.9 ± 4.1 | kcal/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; between pyrrole, CF3CH2OH |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 356.5 ± 4.5 | kcal/mol | IMRB | Angelini, Johnson, et al., 1991 | gas phase; Between CF2HCH2OH, CF3CH2OH |
ΔrG° | 352.5 ± 4.0 | kcal/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; between pyrrole, CF3CH2OH |
Gas phase ion energetics data
Go To: Top, Phase change data, Reaction thermochemistry data, References, Notes
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) | 194.6 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 186.8 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
De-protonation reactions
C3H9OSi- + =
By formula: C3H9OSi- + H+ = C3H10OSi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 362.9 ± 4.6 | kcal/mol | G+TS | Angelini, Johnson, et al., 1991 | gas phase; Between CF2HCH2OH, CF3CH2OH; B |
ΔrH° | 358.9 ± 4.1 | kcal/mol | G+TS | Damrauer, Simon, et al., 1991 | gas phase; between pyrrole, CF3CH2OH; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 356.5 ± 4.5 | kcal/mol | IMRB | Angelini, Johnson, et al., 1991 | gas phase; Between CF2HCH2OH, CF3CH2OH; B |
ΔrG° | 352.5 ± 4.0 | kcal/mol | IMRB | Damrauer, Simon, et al., 1991 | gas phase; between pyrrole, CF3CH2OH; B |
References
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
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
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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