Molecule
- Name
- Sulfur dioxide
- IUPAC name
- (32S,16O2)Sulfur dioxide
- Secondary names
- Sulfurous anhydride, Sulfurous oxide, Sulfur oxide, Sulphur dioxide, Sulfurous acid anhydride, SO2
- InChI
- InChI=1S/O2S/c1-3-2/i1+0,2+0,3+0
- InChI key
- RAHZWNYVWXNFOC-SXRZRGFPSA-N
- Comments
- $^{32}S^{16}O_2$ isotope
- Formula
- $^{32}S^{16}O_2$
- Chemical formula
- SO2
- Isotopic formula
- [32]S[16]O2
- Structural formula
- [16O]=[32S]=[16O]
- Charge
- 0
- Unpaired electrons
- 0
- Relations
-
- no
- Isotope mixture type
- pure isotope
- Spin type
- unique
- Spin quantum numbers
- 0
- Molar mass
- 63.9619 $g/mol$
- State STP
- gas
- Protic
- aprotic
- Polarity
- polar
- Dipole
- 1.63305 $D$
- Molecule symmetry
- C2v
- Case
- nonlinear-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. $^{32}S^{16}O_2$ $A_{1}$ no 1151.0 1151.4 active active s Raman: 1150.5 $cm^{-1}$ (s) V2 bending $^{32}S^{16}O_2$ $A_{1}$ no 518.0 517.7 active active s Raman: 524.5 $cm^{-1}$ (liq, w) V3 stretching asym. $^{32}S^{16}O_2$ $B_{1}$ no 1362.0 1361.8 active active s Raman: 1336 $cm^{-1}$ (liq, w) - Comments
- Data from NIST Chemistry WebBook
- Publications