Do double bonds affect bond angle?

Dec 7, 2015

Yes, the bond angle will be affected due to a different hybridization on the atoms.

Explanation:

A double bond involves a sigma bond and a pi bond. The pi bond is between pi orbitals of adjacent atoms in a molecule. Because of the acquisition of these additional orbitals, the hybridization must change.

In ${\text{CH"_3-"CH}}_{3}$, the carbons have a hybridization of ${\text{sp}}^{3}$, resulting in a tetrahedral structure.

In ${\text{CH"_2="CH}}_{2}$, the carbons have a hybridization of ${\text{sp}}^{2}$, resulting in trigonal planar structure.

Tetrahedral and trigonal planar molecular structures have different bond angles.