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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

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
11.2306.AStephenson and Malanowski, 1987Based on data from 291. - 357. K.; AC
10.6324.IGrubb and Osthoff, 1953Based on data from 291. - 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. - 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
Deltar362.9 ± 4.6kcal/molG+TSAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH
Deltar358.9 ± 4.1kcal/molG+TSDamrauer, Simon, et al., 1991gas phase; between pyrrole, CF3CH2OH
Quantity Value Units Method Reference Comment
Deltar356.5 ± 4.5kcal/molIMRBAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH
Deltar352.5 ± 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
Deltar362.9 ± 4.6kcal/molG+TSAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH; B
Deltar358.9 ± 4.1kcal/molG+TSDamrauer, Simon, et al., 1991gas phase; between pyrrole, CF3CH2OH; B
Quantity Value Units Method Reference Comment
Deltar356.5 ± 4.5kcal/molIMRBAngelini, Johnson, et al., 1991gas phase; Between CF2HCH2OH, CF3CH2OH; B
Deltar352.5 ± 4.0kcal/molIMRBDamrauer, Simon, et al., 1991gas phase; between pyrrole, CF3CH2OH; B

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin James Shoemaker, St. Louis Online Library of Metabolic Mass Spectra
NIST MS number 141238

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


Gas Chromatography

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), NIST Free Links, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryOV-101584.Zenkevich, 200525. m/0.20 mm/0.10 «mu»m, N2/He, 6. K/min; Tstart: 50. C; Tend: 250. C

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-1567.Ciccioli, Cecinato, et al., 199460. m/0.32 mm/0.25 «mu»m; Program: not specified

References

Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, NIST Free Links, 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]

Zenkevich, 2005
Zenkevich, I.G., Experimentally measured retention indices., 2005. [all data]

Ciccioli, Cecinato, et al., 1994
Ciccioli, P.; Cecinato, A.; Brancaleoni, E.; Brachetti, A.; Frattoni, M.; Sparapani, R., Composition and Distribution of Polar and Non-Polar VOCs in Urban, Rural, Forest and Remote Areas, Eur Commission EUR, 1994, 549-568. [all data]


Notes

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