Molecule
Name
Sulfur dioxide
IUPAC name
(33S,16O,18O)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+2,3+1
InChI key
RAHZWNYVWXNFOC-ZPVOVIEISA-N
Comments
^{33}S^{16}O^{18}O$ isotope
Structure and atomic composition
Formula
$^{33}S^{16}O^{18}O$
Chemical formula
SO2
Isotopic formula
[33]S[16]O[18]O
Structural formula
[16O]=[33S]=[18O]
Charge
0
Unpaired electrons
0
  Atom Name Number
$^{33}S$ Sulfur 1
$^{16}O$ Oxygen 1
$^{18}O$ Oxygen 1
Relations
  • no
Isotope mixture type
pure isotope
Spin type
unique
Spin quantum numbers
0
Molar mass
66.965534 $g/mol$
State STP
gas
Protic
aprotic
Polarity
polar
Dipole
1.63305 $D$
Molecule symmetry
Cs
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 $=^{33}S=^{16}O$ $A_{1}$ no active active s
V2 bending $^{33}S^{16}O^{18}O$ $A_{1}$ no active active s
V3 stretching $=^{33}S=^{18}O$ $B_{1}$ no active active s
Chemical bonds
  Bond Number
$=^{33}S=^{16}O$ 1
$=^{33}S=^{18}O$ 1