Silane,(4-methoxyphenyl)dimethyl-
- Formula: C9H14OSi
- Molecular weight: 166.2924
- CAS Registry Number: 1432-38-8
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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
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Individual Reactions
C9H13OSi- + = C9H14OSi
By formula: C9H13OSi- + H+ = C9H14OSi
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 378.8 ± 2.2 | kcal/mol | G+TS | Irie, Kikukawa, et al., 2001 | gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 371.1 ± 2.0 | kcal/mol | IMRE | Irie, Kikukawa, et al., 2001 | gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB |
Gas phase ion energetics data
Go To: Top, 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 compiled as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C8H11OSi+ | 8.13 | CH3 | EI | Dube and Chvalovsky, 1974 | LLK |
De-protonation reactions
C9H13OSi- + = C9H14OSi
By formula: C9H13OSi- + H+ = C9H14OSi
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 378.8 ± 2.2 | kcal/mol | G+TS | Irie, Kikukawa, et al., 2001 | gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB; B |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 371.1 ± 2.0 | kcal/mol | IMRE | Irie, Kikukawa, et al., 2001 | gas phase; The anion may be ArSiH(Me)CH2-, based on LFER size and ab initio calculations - JEB; B |
References
Go To: Top, 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.
Irie, Kikukawa, et al., 2001
Irie, M.; Kikukawa, K.; Shimizu, N.; Mishima, M.,
Gas-phase acidities of aryldimethylsilanes,
J. Chem. Soc. Perkin Trans., 2001, 2, 6, 923-928, https://doi.org/10.1039/b100488n
. [all data]
Dube and Chvalovsky, 1974
Dube, G.; Chvalovsky, V.,
Electron impact fragmentation of substituted phenyldimethylsilanes,
Collect. Czech. Chem. Commun., 1974, 39, 2621. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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