Glyoxal
- Formula: C2H2O2
- Molecular weight: 58.0361
- IUPAC Standard InChI: InChI=1S/C2H2O2/c3-1-2-4/h1-2H
- IUPAC Standard InChIKey: LEQAOMBKQFMDFZ-UHFFFAOYSA-N
- CAS Registry Number: 107-22-2
- 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: Ethanedial; Biformal; Biformyl; Diformyl; Ethanedione; Glyoxal aldehyde; Glyoxylaldehyde; Oxal; Oxalaldehyde; 1,2-Ethanedione; (CHO)2; Diformal; Ethane-1,2-dione; Ethandial; Aerotex glyoxal 40; ODIX; Protectol GL 40
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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: C2h Symmetry Number σ = 2
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| ag | 1 | CH str | 2843 | B | ia | |||||
| ag | 2 | CO str | 1745 | B | ia | |||||
| ag | 3 | CH bend | 1338 | D | ia | OC | ||||
| ag | 4 | CC str | 1065 | B | ia | |||||
| ag | 5 | CCO deform | 551 | B | ia | |||||
| au | 6 | CH bend | 801 | B | 801.36 M | gas | ||||
| au | 7 | Torsion | 127 | B | 126.5 W | gas | ||||
| bg | 8 | CH bend | 1048 | B | ia | |||||
| bu | 9 | CH str | 2835 | B | 2835.07 VS | gas | ||||
| bu | 10 | CO str | 1732 | C | 1732 VS | gas | ||||
| bu | 11 | CH bend | 1312 | B | 1312.38 S | gas | ||||
| bu | 12 | CCO deform | 339 | B | 338.55 S | gas | ||||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| S | Strong |
| M | Medium |
| W | Weak |
| ia | Inactive |
| OC | Frequency estimated from an overtone or a combination tone indicated in the parentheses. |
| B | 1~3 cm-1 uncertainty |
| 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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