MOLECULAR POLARITYFIELD NOTE 84 / 175
Is CH3SOCH3 polar or nonpolar?
CH3SOCH3 is polar because its sulfur–oxygen bond creates a strong dipole that the two methyl groups cannot cancel.
Dimethyl Sulfoxide · pyramidal around S; tetrahedral at each C
The molecule in space
Drag to turn the molecule. Show angles to read the model geometry.
01 / MODEL RECORDPubChem 3D coordinates. Atom sizes and bond thickness are illustrative.How model data is used ↗
Why CH3SOCH3 is polar
Sulfur connects to two methyl carbons and oxygen, with a lone-pair contribution at the sulfur center. The S–O region is much more electron-rich than the methyl side, leaving a substantial net dipole.
What to notice
DMSO has two identical CH3 groups, but the oxygen occupies a different direction. This partial symmetry does not erase the S–O polarization.
Common questions about CH3SOCH3
- 01
What does the Lewis structure of CH3SOCH3 show?
A common Lewis sketch is CH3–S(=O)–CH3 with a lone pair on S. Charge-separated resonance forms also describe the S–O bond.
- 02
What is the molecular geometry of CH3SOCH3?
CH3SOCH3 has a pyramidal around S; tetrahedral at each C molecular geometry. The 3D model shows representative bond angles of 107.5° and 95.8° and 108.6°. These angles come from the displayed model coordinates.
- 03
What is the molar mass of CH3SOCH3?
CH3SOCH3 has an approximate molar mass of 78.13 g/mol, calculated from its formula using abridged standard atomic weights. Natural isotope variation can change the last digits.