Writing Pi Bonds


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TiffanyL1G
Posts: 61
Joined: Fri Sep 28, 2018 12:22 am

Writing Pi Bonds

Postby TiffanyL1G » Thu Nov 22, 2018 9:10 pm

How do you write pi bonds on the molecule? I understand how to identify them, but I don't understand how to write the composition of the bond and the hybridization of a pi bond? For example on problem #95 (in the 6th edition chapter 4), in part b the problems asks that you write the composition of the bond and the hybridization of each lone pair. For the sigma bonds it was like (C2sp2-C2sp2) and then the pi bond was (C2p-C2p). Why is the pi bond just C2p?

Andrew Sun 1I
Posts: 30
Joined: Fri Sep 28, 2018 12:18 am

Re: Writing Pi Bonds

Postby Andrew Sun 1I » Fri Nov 23, 2018 8:05 am

The pi bond is not the entire double bond, just the single bond on top of the preexisting sigma bond. For example, a double bond consists of one sigma bond (C2sp2) and a pi bond (C2p).

aisteles1G
Posts: 117
Joined: Fri Sep 28, 2018 12:15 am

Re: Writing Pi Bonds

Postby aisteles1G » Fri Nov 23, 2018 10:56 am

From what I understand, its because pi bonds happen outside of the hybridized orbital, they happen in the p orbitals, hence just the 2p instead of 2sp. Pi bonds happen from the electrons left over in the p orbitals after hybridization so youre not going to have them as a part of the hybridized sp orbitals.


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