Question

Geometrical isomerism around Terphenyls[Atropeisomerism]​

Answer 1

ANSWER

Sigma bonds or saturated compounds can rotate around and shift. This makes geometrical isomers of non-substituted alkanes impossible because the atoms can shift back and forth.

Pi bonds, like those in double bonds, can't freely move around. Since each carbon in a double-bond chain can form another bond that doesn't move, you can create symmetrical isomers.

The rotation is restricted around carbon carbon double bond because the rotation leads to break the pi bond by which molecule losses its stability. So molecule does not change their position .there fore cis remains cis and trans remains trans in universe.they Show G.I (geometrical isomerism)

Answer 2

Explanation:

Geometric isomers are molecules that are locked into their spatial positions with respect to one another due to a double bond or a ring structure. For example, consider the following two molecules.