how is a pi bond formed .why does it not allow free rotation about molecular axis
Dear Student,
Please find below the solution to the asked query:
A pi-bond is formed by the sideways overlap of the two atomic orbitals. In this type of bonding, the overlap is above and below the plane of the molecule. If the molecule rotates, the pi-bond will break and will no longer be available, but since the breaking of bond requires energy, it doesn't happen so. Hence, on formation of pi-bond the rotation of the bond along this axis is restricted.
Hope this information will clear your doubts about Chemical bonding and molecular structure.
If you have any doubts just ask here on the ask and answer forum and our experts will try to help you out as soon as possible.
Best Wishes !
Please find below the solution to the asked query:
A pi-bond is formed by the sideways overlap of the two atomic orbitals. In this type of bonding, the overlap is above and below the plane of the molecule. If the molecule rotates, the pi-bond will break and will no longer be available, but since the breaking of bond requires energy, it doesn't happen so. Hence, on formation of pi-bond the rotation of the bond along this axis is restricted.
Hope this information will clear your doubts about Chemical bonding and molecular structure.
If you have any doubts just ask here on the ask and answer forum and our experts will try to help you out as soon as possible.
Best Wishes !