MOLECULAR POLARITYFIELD NOTE 156 / 175

Is SCl2 polar or nonpolar?

SCl2 is polar because two sulfur lone pairs bend the pair of S–Cl bonds.

THE ANSWERPolar.

Sulfur Dichloride · bent

FIGURE 01

The molecule in space

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STRUCTURE / 01
Cl ×2S ×1
ClClS
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01 / MODEL RECORDPubChem 3D coordinates. Atom sizes and bond thickness are illustrative.How model data is used ↗

THE REASONING

Why SCl2 is polar

Sulfur forms two single bonds to chlorine and keeps two lone pairs. Those lone pairs make the Cl–S–Cl frame bent, preventing the two bond contributions from pointing in opposite directions.

A USEFUL DISTINCTION

What to notice

SCl2 belongs with H2S and H2O as a two-bond, two-lone-pair shape example. The outer atoms change the bond polarity, not the bent VSEPR pattern.

QUICK REFERENCE

Common questions about SCl2

  1. 01
    What does the Lewis structure of SCl2 show?

    The connectivity is Cl–S–Cl. Sulfur has two lone pairs; each chlorine has three.

  2. 02
    What is the molecular geometry of SCl2?

    SCl2 has a bent molecular geometry. The 3D model shows representative bond angles of 97.9°. These angles come from the displayed model coordinates.

  3. 03
    What is the molar mass of SCl2?

    SCl2 has an approximate molar mass of 102.96 g/mol, calculated from its formula using abridged standard atomic weights. Natural isotope variation can change the last digits.

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