Silane, trideutero-(methyl)-
- Formula: CH3D3Si
- Molecular weight: 49.1623
- CAS Registry Number: 1066-43-9
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Gas phase ion energetics data
Go To: Top, Vibrational and/or electronic energy levels, 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
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| CH2DSi+ | 11.4 | ? | EI | Bradshaw, Moyes, et al., 1976 | LLK |
| CH2D2Si+ | 11.4 | H,D | EI | Bradshaw, Moyes, et al., 1976 | LLK |
| CH3DSi+ | 10.99 ± 0.03 | D2 | PI | Shin, Corderman, et al., 1990 | LL |
| CH3DSi+ | 11.5 | 2D | EI | Bradshaw, Moyes, et al., 1976 | LLK |
| CH3D2Si+ | 10.9 ± 0.1 | D- | PI | Shin, Corderman, et al., 1990 | LL |
| CH3D2Si+ | 11.8 | D | EI | Bradshaw, Moyes, et al., 1976 | LLK |
| CH3Si+ | 12.1 | ? | EI | Bradshaw, Moyes, et al., 1976 | LLK |
| D2Si+ | 11.40 ± 0.03 | CH3D | PI | Shin, Corderman, et al., 1990 | LL |
| D2Si+ | 11.6 | ? | EI | Bradshaw, Moyes, et al., 1976 | LLK |
| D3Si+ | 12.4 | ? | EI | Bradshaw, Moyes, et al., 1976 | LLK |
| Si+ | 11.8 | ? | EI | Bradshaw, Moyes, et al., 1976 | LLK |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase ion energetics 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 by: Takehiko Shimanouchi
Symmetry: C3ν Symmetry Number σ = 3
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a1 | 1 | CH3 s-str | 2923 | A | 2923.4 M | gas | ||||
| a1 | 2 | SiD3 s-str | 1558 | C | 1558 M | gas | ||||
| a1 | 3 | CH3 s-deform | 1262 | C | 1262 S | gas | ||||
| a1 | 4 | Csi str | 741 | C | 741 VS | gas | ||||
| a1 | 5 | SiD3 s-deform | 652 | C | 652 S | gas | ||||
| a2 | 6 | Torsion | 172 | D | ia | ν172.1νA) MW. ν171.9νE) | ||||
| e | 7 | CH3 d-str | 2982 | A | 2981.8 M | gas | ||||
| e | 8 | SiD3 d-str | 1577 | C | 1577 VS | gas | ||||
| e | 9 | CH3 d-deform | 1401 | C | 1401 M | gas | ||||
| e | 10 | CH3 rock | 825 | C | 825 S | gas | ||||
| e | 11 | SiD3 d-deform | 668 | C | 668 S | gas | ||||
| e | 12 | SiD3 rock | 433 | C | 433 | gas | ||||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| S | Strong |
| M | Medium |
| ia | Inactive |
| MW | Torsional Frequency calculated from microwave spectroscopic data. |
| A | 0~1 cm-1 uncertainty |
| C | 3~6 cm-1 uncertainty |
| D | 6~15 cm-1 uncertainty |
References
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Bradshaw, Moyes, et al., 1976
Bradshaw, D.I.; Moyes, R.B.; Wells, P.B.,
Mass spectra of some deuterium-labelled methylsilanes the analysis of mixtures,
Can. J. Chem., 1976, 54, 599. [all data]
Shin, Corderman, et al., 1990
Shin, S.K.; Corderman, R.R.; Beauchamp, J.L.,
Photoionization mass spectrometric studies of the methylsilanes Si(CH3)nH4-n (n = 0-3),
Int. J. Mass Spectrom. Ion Processes, 1990, 101, 257. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume II,
J. Phys. Chem. Ref. Data, 1972, 6, 3, 993-1102. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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