Trimethylsilyl radical
- Formula: C3H9Si
- Molecular weight: 73.1891
- IUPAC Standard InChI: InChI=1S/C3H9Si/c1-4(2)3/h1-3H3
- IUPAC Standard InChIKey: DCERHCFNWRGHLK-UHFFFAOYSA-N
- CAS Registry Number: 16571-41-8
- Chemical structure:
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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 compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
View reactions leading to C3H9Si+ (ion structure unspecified)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°(+) ion | 628. | kJ/mol | N/A | N/A | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH(+) ion,0K | 657. | kJ/mol | N/A | N/A |
Electron affinity determinations
| EA (eV) | Method | Reference | Comment |
|---|---|---|---|
| 0.971 ± 0.026 | LPD | Wetzel, Salomon, et al., 1989 | B |
| 1.04 ± 0.20 | D-EA | Damrauer, Kass, et al., 1988 | Between furan and methanol.; B |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 6.5 | DER | Lias, Bartmess, et al., 1988 | LL |
| 7.03 | DER | Szepes and Baer, 1984 | LBLHLM |
| 5.75 | DER | Loguinov, Takhistov, et al., 1981 | LLK |
References
Go To: Top, 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.
Wetzel, Salomon, et al., 1989
Wetzel, D.M.; Salomon, K.E.; Berger, S.; Brauman, J.I.,
Gas-Phase Acidities of Organosilanes and Electron Affinities of Organosilyl Radicals,
J. Am. Chem. Soc., 1989, 111, 11, 3835, https://doi.org/10.1021/ja00193a013
. [all data]
Damrauer, Kass, et al., 1988
Damrauer, R.; Kass, S.R.; DePuy, C.H.,
Gas-Phase Acidities of Methylsilanes: C-H versus Si-H,
Organomet., 1988, 7, 3, 637, https://doi.org/10.1021/om00093a011
. [all data]
Lias, Bartmess, et al., 1988
Lias, S.G.; Bartmess, J.E.; Liebman, J.F.; Holmes, J.L.; Levin, R.D.; Mallard, W.G.,
Gas-phase ion and neutral thermochemistry,
J. Phys. Chem. Ref. Data, Suppl. 1, 1988, 17, 1-861. [all data]
Szepes and Baer, 1984
Szepes, L.; Baer, T.,
Dissociation dynamics of energy selected hexamethyldisilane ions and the heats of formation of (CH3)3Si+ and (CH3)3Si,
J. Am. Chem. Soc., 1984, 106, 273. [all data]
Loguinov, Takhistov, et al., 1981
Loguinov, Y.; Takhistov, V.V.; Vatlina, L.P.,
Photoionization studies of substituted trimethylamines,
Org. Mass Spectrom., 1981, 16, 239. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
EA Electron affinity ΔfH(+) ion,0K Enthalpy of formation of positive ion at 0K - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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