Hybridization and molecular shape

[Jaedyn_Birchmier3F]

In lecture, professor Lavelle was talking about how pi bonds are different than sigma bonds because they do not rotate a certain way so the positions of the atoms are locked. What does this do in particular to specific molecular shapes?

[Mahir_Hasan2C]

Bonds don't affect the shape, they just affect the rotation.

[Tony Chung 2I]

lone pairs affect the shape

[Timothy_Yueh_4L]

What Dr. Lavelle was referring to in class were that pi bonds are formed by the overlap of electron densities that are perpendicular to the sigma bond. Because of their orientation, they are extremely limited in their movement unable to rotate like a single sigma bond. Due to this it results in different cis and trans structures which results in different molecular position.