## pi bonds

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

### pi bonds

How do we explain pi bonds using hybridization? There was an example from class for C2H4, but I don't understand it.

Elena Saab 4A
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

### Re: pi bonds

If you have an sp2 hybridized orbital, there is one p orbital left that is not hybridized. When you are filling electrons into the orbitals, the energy difference between sp2 and p is very small (because you can think of sp2 as an average of s and 2 p orbitals), so it is more energy favorable for the electrons to enter into the p orbital rather than having a lone pair in one of the hybridized orbital. When a bond forms with the unhybridized orbital, it is a pi bond.

Nicklas_Wright_1A
Posts: 60
Joined: Fri Sep 28, 2018 12:23 am

### Re: pi bonds

Pi bonds do not involve hybridization.

Tinisha 1G
Posts: 69
Joined: Fri Sep 28, 2018 12:17 am

### Re: pi bonds

Sigma bonds are involved in hybridization, but pi bonds are not involved in hybridization.

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