Ethene, tetrabromo-
- Formula: C2Br4
- Molecular weight: 343.637
- IUPAC Standard InChI: InChI=1S/C2Br4/c3-1(4)2(5)6
- IUPAC Standard InChIKey: OVRRJBSHBOXFQE-UHFFFAOYSA-N
- CAS Registry Number: 79-28-7
- 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. - Other names: Ethylene, tetrabromo-; Tetrabromoethene; Tetrabromoethylene
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Vibrational and/or electronic energy levels
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 by: Takehiko Shimanouchi
Symmetry: D2h Symmetry Number σ = 4
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| ag | 1 | CC str | 1535 | E | ia | 1547 p | liq. | FR(2ν9) | ||
| ag | 1 | CC str | 1535 | E | ia | 1515 p | liq. | FR(2ν9) | ||
| ag | 2 | CBr2 s-str | 265 | D | ia | 265 p | liq. | |||
| ag | 3 | CBr2 scis | 144 | D | ia | 144 p | liq. | |||
| au | 4 | CBr2 twist | 66 | E | ia | ia | ||||
| b1g | 5 | CBr2 a-str | 880 | D | ia | 880 dp | liq. | |||
| b1g | 6 | CBr2 rock | 208 | D | ia | 208 dp | liq. | |||
| b1u | 7 | CBr2 wag | 245 | C | 245 S | liq. | ia | |||
| b2g | 8 | CBr2 wag | 464 | D | ia | 464 dp | liq. | |||
| b2u | 9 | CBr2 a-str | 766 | C | 766 S | liq. | ia | |||
| b2u | 10 | CBr2 rock | 119 | C | 119 M | liq. | ia | |||
| b3u | 11 | CBr2 s-str | 635 | C | 635 S | liq. | ia | |||
| b3u | 12 | CBr2 scis | 188 | C | 188 M | liq. | ia | |||
Source: Shimanouchi, 1972
Notes
| S | Strong |
| M | Medium |
| ia | Inactive |
| p | Polarized |
| dp | Depolarized |
| FR | Fermi resonance with an overtone or a combination tone indicated in the parentheses. |
| C | 3~6 cm-1 uncertainty |
| D | 6~15 cm-1 uncertainty |
| E | 15~30 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 I, National Bureau of Standards, 1972, 1-160. [all data]
Notes
Go To: Top, Vibrational and/or electronic energy levels, References
- 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.