Dear student,

Pi bonds result from overlap of atomic orbitals that are in contact through two areas of overlap. Pi-bonds are more diffuse bonds than the sigma bonds. Electrons in pi bonds are sometimes referred to as pi electrons. Molecular fragments joined by a pi bond cannot rotate about that bond without breaking the pi bond, because rotation involves destroying the parallel orientation of the constituent p orbitals.

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Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

friend,

pi bonds will not exist without the presence of sigma bonds.

and hence, there is no carbon molecule with both pi bonds.