Molecule
- Name
- Carbonyl sulfide
- 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 $OCS$
- Formula
- $OCS$
- Chemical formula
- OCS
- Structural formula
- [O]=[C]=[S]
- Charge
- 0
- Unpaired electrons
- 0
- Relations
-
- no
- Isotope mixture type
- terrestrial abundance
- Spin type
- unique
- Spin quantum numbers
- 0
- Molar mass
- 60.0751 $g/mol$
- State STP
- gas
- Protic
- aprotic
- Polarity
- polar
- Dipole
- 0.715189 $D$
- Molecule symmetry
- Cinfv
- Case
- linear-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 $=C=O$ $\Sigma+$ 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: $^{16}O^{12}C^{32}S$. Data from NIST Chemistry WebBook - sometimes v1 and v3 interverted
- Publications