Hyperconjugation (No-bond Resonance)
There is another type of delocalization, which involves σ-electrons called Hyperconjugation.
It may be regarded as
a σ-π orbital overlap analogous to the π-π orbital overlap.
In hyperconjugation,
the sigma C-H bond on the alpha carbon is delocalized with the empty p-orbital of a C= or a carbocation. As a result,
H+ does not change its position.