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Hyperconjugation --> The delocalization of electrons with the Participation of bonds of primarily sigma - character. The interactions between the electrons of systems (multiple bonds) and the adjacent bonds (single bonds) of the substituent groups in organic compounds is called hyperconjugation. The concept of hyperconjugation was developed by Baker and Nathan and is also known as Baker and Nathan effect.

Example of Hyperconjugation :- Hyperconjugation of Propane

Because there is no bond between the carbon atom and one of the hydrogen atoms, hyperconjugation is also called no bond resonance.

Although a free proton has been show in the above structure , it is still bound quite firmly to the P- cloud , and hence it is not free to move.

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