Hydrogen sulfide

Molecule

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 $H_2S$

	Atom	Name	Number
	$H$	Hydrogen	2
	$S$	Sulfur	1

Relations

Isotope mixture type

terrestrial abundance

Isotopes

	Isotope	Mole fraction
	$H_2~^{32}S$	0.949681536
	$D_2~^{32}S$	1.25624e-08

Molecule symmetry

C2v

Case

nonlinear-triatomic

Vibrations number

3

Vibrations

Label	Mode	Bond	Symmetry	Degeneracy	Fundamental frequency	Observed 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