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kiran josan Grade: 11
        what is hyperconjugation effect? how it explain the stability of alkenes
6 years ago

Answers : (4)

Durgesh Prasher
21 Points

1242_25758_double bond.jpeg

6 years ago
vikas askiitian expert
510 Points

When atoms / groups having lone pair of electrons are bonded by a single bond to the conjugated system, they displace electrons towards multiple bonds.

illustration of hyperconjugation with single bond

  • When electronegative atoms or group of atoms bond themselves to the conjugated systems by multiple bonding they pull electrons from the multiple bond.

  • illustration of hyperconjugation with multiple bond

This conjugation between electrons of single (H-C) bond with multiple bonds is called hyperconjugation. This occurs when the sigma (s) electrons of the H-C bond that is attached to an unsaturated system, such as double bond or a benzene ring, enter into conjugation with the unsaturated system.

Stability order of alkenes

6 years ago
11 Points
										If sigma electrons containing acidic H are present at alternate position with πelectron system, then sigma electrons enter into conjugation with π electron system
27 days ago
pragati dound
21 Points
										Hyperconjugation means transfer of the sigma electron which are there in between C-H bond to the next carbon which is attached to alfa carbonMore the  number of alfa hydrogenAnd then more the number of hyperconjugation structure which leads to stability.
26 days ago
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