Assign the molecules CCl2CCl2, CCl2CF2, SeO3, PCl3, C2O42-, CH3Cl, CH3CH2Cl,SO to point groups with explantion.

Assign the molecules CCl₂CCl₂, CCl₂CF₂, SeO₃, PCl₃, C₂O₄^2-, CH₃Cl, CH₃CH₂Cl,SO to point groups with explantion.

Expert Solution

CCL2CCL2 is like ethylene and so it has 3 C2 symmetries and 3 vertical planes so it belongs to D2h point group

A molecule belongs to the group Dn if it has a n-fold principal axis Cn and n two-fold axes perpendicular to Cn.

A molecule belongs to the group Dnh if in addition to the Dn operations it possess a horizontal mirror plane σh.

CCL2CF2 is like 1,1 dichloroethylene and it has 1 C2 and 2 vertical planes and no perpendicular plane so it belongs to C2v point group.

A molecule belongs to the group Cnv if it has a Cn axis, it has n vertical mirror planes σv

SeO3 is like SO3 and it belongs to D3h point group.

A molecule belongs to the group Dn if it has a n-fold principal axis Cn and n two-fold axes perpendicular to Cn.

A molecule belongs to the group Dnh if in addition to the Dn operations it possess a horizontal mirror plane σh.

PCl3 is like NH3 and belongs to C3v point group.

A molecule belongs to the group Cnv if it has a Cn axis, it has n vertical mirror planes σv

queen_honey_blossom answered 2 years ago

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