Molecule
- Name
- Carbon dioxide
- IUPAC name
- Carbon dioxide
- Secondary names
- Carbonic anhydride, Carbonic acid anhydride, Carbon oxide, CO2
- InChI
- InChI=1S/CO2/c2-1-3
- InChI key
- CURLTUGMZLYLDI-UHFFFAOYSA-N
- CAS number
- 124-38-9
- Comments
- natural $CO_2$
- Formula
- $CO_2$
- Chemical formula
- CO2
- Structural formula
- O=C=O
- Charge
- 0
- Unpaired electrons
- 0
- Relations
-
- no
- Isotope mixture type
- terrestrial abundance
- Spin type
- unique
- Spin quantum numbers
- 0
- Molar mass
- 44.009546 $g/mol$
- State STP
- gas
- Protic
- aprotic
- Polarity
- nonpolar
- Dipole
- 0.0 $D$
- Molecule symmetry
- Dinfh
- Case
- linear-triatomic
- Vibrations number
- 3
- Vibrations
-
Label Mode Bond Symmetry Degeneracy Fundamental frequency Observed frequency Observed frequency Harmonic frequency Activity IR Activity Raman Strength Comments V1 stretching sym. $=C=O$ $\Sigma+$ no 1333.0 1353.6 inactive active ia in Fermi resonance with $2\nu_2$ - Raman: 1285.40 and 1388.15 $cm^{-1}$ V2 bending $CO_2$ $\Pi$ double 667.0 667.38 672.6 active inactive s V3 stretching asym. $=C=O$ $\Sigma+$ no 2349.0 2349.16 2396.3 active inactive vs - Comments
- Vibrations of the main isotope: $^{12}C^{16}O_2$. Data from NIST Chemistry WebBook and Jobard & Chedin (1975)
- Publications