(2H)formaldehyde
- Formula: CD2O
- Molecular weight: 32.0383
- CAS Registry Number: 1664-98-8
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- 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: 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 | CD2 s-str | 2056 | D | 2056.4 S | gas | FR(2ν3) | |||
| a1 | 2 | CO str | 1700 | B | 1700 VS | gas | ||||
| a1 | 3 | CD2 scis | 1106 | C | 1106.0 S | gas | ||||
| b1 | 4 | CD2 a-str | 2160 | C | 2160.3 VS | gas | ||||
| b1 | 5 | CD2 rock | 990 | C | 990.2 S | gas | ||||
| b2 | 6 | CD2 wag | 938 | E | 938 S | gas | ||||
Source: Shimanouchi, 1972
Notes
| VS | Very strong |
| S | Strong |
| FR | Fermi resonance with 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 |
| 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.