Dibromosilane
- Formula: Br2H2Si
- Molecular weight: 189.909
- IUPAC Standard InChI: InChI=1S/Br2H2Si/c1-3-2/h3H2
- IUPAC Standard InChIKey: VJIYRPVGAZXYBD-UHFFFAOYSA-N
- CAS Registry Number: 13768-94-0
- Chemical structure:
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Vibrational and/or electronic energy levels
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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: Takehiko Shimanouchi
Symmetry: C2ν Symmetry Number σ = 2
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a1 | 1 | SiH2 s-str | 2206 | D | 2200 S | gas | 2206 S p | liq. | ||
| a1 | 2 | SiH2 scis | 942 | C | 942 VS | gas | 925 W dp | liq. | ||
| a1 | 3 | SiBr2 s-str | 407 | C | 407 M | gas | 393 S p | liq. | ||
| a1 | 4 | SiBr2 scis | 122 | D | 122 M p | liq. | ||||
| a2 | 5 | SiH2 twist | 688 | D | ia | 688 W dp | liq. | |||
| b1 | 6 | SiH2 a-str | 2232 | D | 2200 S | gas | 2232 W dp | liq. | ||
| b1 | 7 | SiH2 rock | 556 | C | 556 S | gas | ||||
| b2 | 8 | SiH2 wag | 843 | C | 843 VS | gas | 828 VW dp | liq. | ||
| b2 | 9 | SiBr2 a-str | 471 | C | 471 S | gas | 456 W dp | liq. | ||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| S | Strong |
| M | Medium |
| W | Weak |
| VW | Very weak |
| ia | Inactive |
| p | Polarized |
| dp | Depolarized |
| C | 3~6 cm-1 uncertainty |
| D | 6~15 cm-1 uncertainty |
References
Go To: Top, 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.
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, Vibrational and/or electronic energy levels, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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