Sulfur dioxide | SSHADE

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Molecule

Name: Sulfur dioxide

Name and identifiers

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

Isotopic composition

Isotope mixture type: pure isotope

Nuclear spin isomers

Spin type: unique
Spin quantum numbers: 0

Molar mass: 66.965534 $g/mol$
State STP: gas
Protic: aprotic
Polarity: polar
Dipole: 1.63305 $D$

Fundamental vibration modes

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 functions and bonds

Chemical bonds

	Bond	Number
	$=^{33}S=^{16}O$	1
	$=^{33}S=^{18}O$	1

Wikipedia: $SO_2$