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:
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. - Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Data at other public NIST sites:
- Options:
Gas phase ion energetics data
Go To: Top, 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:
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 | 150. | kcal/mol | N/A | N/A | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH(+) ion,0K | 157. | kcal/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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.