Molecule
Name
Hydrogen sulfide
IUPAC name
Hydrogen sulfide
Secondary names
Dihydrogen monosulfide, Dihydrogen sulfide, Hydrosulfuric acid, Hydrogen sulphide, Hydrogen monosulfide, H2S
InChI
InChI=1S/H2S/h1H2
InChI key
RWSOTUBLDIXVET-UHFFFAOYSA-N
CAS number
7783-06-4
Comments
natural $H_2S$
Formula
$H_2S$
Chemical formula
H2S
Structural formula
[SH2]
Charge
0
Unpaired electrons
0
  Atom Name Number
$H$ Hydrogen 2
$S$ Sulfur 1
Relations
  • no
Isotope mixture type
terrestrial abundance
Isotopes
  Isotope Mole fraction
$H_2~^{32}S$ 0.949681536
$D_2~^{32}S$ 1.25624e-08
Spin type
equilibrated
Spin quantum numbers
0, 1
Molar mass
34.08066874 $g/mol$
State STP
gas
Protic
protic
Polarity
polar
Dipole
0.97833 $D$
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. $H_2S$ $A_{1}$ no 2615.0 2614.6 active active m Raman: 2612.4 $cm^{-1}$ (gas)
V2 bending $H_2S$ $A_{1}$ no 1183.0 1182.7 active active s
V3 stretching asym. $H_2S$ $B_{1}$ no 2626.0 2626.0 active active m
Comments
vibrations of the main isotope: $H_2^{32}S$. Data from NIST Chemistry WebBook
Publications
Chemical bonds
  Bond Number
$-S-H$ 2