Sigma Pi

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Anokhi Patel 2B
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Joined: Fri Aug 09, 2019 12:17 am

Sigma Pi

Postby Anokhi Patel 2B » Fri Nov 08, 2019 3:30 pm

Why are single bonds referred to as sigma bonds and double bonds as sigma pi and triple bonds as sigma pi pi?

Posts: 101
Joined: Fri Aug 30, 2019 12:17 am

Re: Sigma Pi

Postby Maia_Jackson_2C » Fri Nov 08, 2019 4:54 pm

The sigma bond is just a covalent bond, and every bond has a sigma, and the pi bonds represent the overlapping of another bond, which is why triple bonds have 2 pi's.

Aadil Rehan 1D
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Joined: Thu Jul 11, 2019 12:16 am
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Re: Sigma Pi

Postby Aadil Rehan 1D » Fri Nov 08, 2019 6:59 pm

According to, "A sigma bond, σ, resembles a similar "s" atomic orbital, and a pi bond, π, has the same orbital symmetry of the p orbital (again, in both cases when viewed down the bond axis)." So I'd assume that's where the convention comes from.

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