Carbonyl sulfide

Molecule

IUPAC name: Carbon oxide sulfide
Secondary names: Carbon oxide sulfide, Carbon oxide sulphide, Carbon oxysulfide, Carbon oxysulphide, Oxycarbon sulfide, Oxycarbon sulphide, carbonyl sulfide, carbonyl sulphide, OCS, COS
InChI: InChI=1S/COS/c2-1-3
InChI key: JJWKPURADFRFRB-UHFFFAOYSA-N
CAS number: 463-58-1
Comments: natural $OCS$

Relations

Molecule symmetry

Cinfv

Case

linear-triatomic

Vibrations number

3

Vibrations

Label	Mode	Bond	Symmetry	Degeneracy	Fundamental frequency	Observed frequency	Activity IR	Activity Raman	Strength	Comments
V1	stretching	$=C=O$	$\Sigma+$	no	2062.0	2062.2	active	active	vvs	Raman: 2050 $cm^{-1}$ (liq, w)
V2	bending	$OCS$	$\Pi$	double	520.0	520.4	active	active	s	Raman: 521 $cm^{-1}$ (liq, w)
V3	stretching	$=C=S$	$\Sigma+$	no	859.0	858.95	active	active	s	Raman: 858 $cm^{-1}$ (liq, m)

Comments

Vibrations of the main isotope:

^{16} O^{12} C^{32} S

$^{16}O^{12}C^{32}S$ . Data from NIST Chemistry WebBook - sometimes v1 and v3 interverted

Publications

Chemical bonds

	Bond	Number
	$=C=O$	1
	$=C=S$	1