2-Propenal
- Formula: C3H4O
- Molecular weight: 56.0633
- IUPAC Standard InChI: InChI=1S/C3H4O/c1-2-3-4/h2-3H,1H2
- IUPAC Standard InChIKey: HGINCPLSRVDWNT-UHFFFAOYSA-N
- CAS Registry Number: 107-02-8
- 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. - Other names: Acrolein; Acrylaldehyde; Acrylic Aldehyde; Allyl aldehyde; Aqualin; NSC 8819; Prop-2-En-1-al; Propenal; 2-Propen-1-one; CH2=CHCHO; Acraldehyde; Acraldehydeacroleina; Acroleine; Acrylaldehyd; Akrolein; Akroleina; Aldehyde acrylique; Aldeide acrilica; Aqualine; Crolean; Ethylene aldehyde; Magnacide H; Propylene aldehyde; Slimicide; Acroleina; Magnacide; Rcra waste number P003; UN 1092; 2-Propenaldehyde; (E)-2-propenal
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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: Cs Symmetry Number σ = 1
| Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
| a' | 1 | CH2 a-str | 3103 | C | 3103 M | gas | ||||
| a' | 2 | CH(beta) str | 3028 | D | 3028 M | sln. | ||||
| a' | 3 | CH2 s-str | 3000 | D | 3000 M | gas | ||||
| a' | 4 | CH(alpha) str | 2800 | C | 2800 S | gas | ||||
| a' | 5 | CO str | 1724 | C | 1724 VS | gas | ||||
| a' | 6 | C=C str | 1625 | C | 1625 M | gas | ||||
| a' | 7 | CH2 scis | 1420 | C | 1420 S | gas | ||||
| a' | 8 | CH(alpha) ip-bend | 1360 | C | 1360 M | gas | ||||
| a' | 9 | CH(beta) ip-bend | 1275 | C | 1275 W | gas | ||||
| a' | 10 | C-C str | 1158 | C | 1158 S | gas | ||||
| a' | 11 | CH2 rock | 912 | C | 912 S | gas | ||||
| a' | 12 | CCO deform | 564 | C | 564 M | gas | ||||
| a' | 13 | CCC bend | 327 | C | 327 M | gas | ||||
| a | 14 | CH(beta) op-bend | 993 | B | 993 S | gas | ||||
| a | 15 | CH(alpha) op-bend | 980 | E | CF | |||||
| a | 16 | CH2 wag | 959 | B | 959 S | gas | ||||
| a | 17 | CH2 twist | 593 | C | 593 S | gas | ||||
| a | 18 | CC torsion | 157 | C | 157 M | gas | ||||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| S | Strong |
| M | Medium |
| W | Weak |
| CF | Calculated frequency |
| B | 1~3 cm-1 uncertainty |
| 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
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