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Discuss the effect of hyperconjugation in propene. |
Answer» Solution :In propene , the ` sigma ` -electrons of C-H bond of methyl group can be delocalised into the ` pi` -orbital doubly bonded carbon as represented below .  In the above structure the sigma bond is involved in resonance and breaks inorder to supply electrons for deloclisationgiving rise to 3 new canonical forms .In the contributing canonical STRUCTURES (II) (III) & (IV) of propene , there is no bond between an -carbon and one of the hydrogen atoms . HENCE the HYPERCONJUGATION is also known as .. no bond resonance .. or .. Baker-Nathan effect .. . The structures (II) ,(III) & (IV) are POLAR is nature . |
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