Sigma and Pi Bonds

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Jarrett Peyrefitte 2K
Posts: 102
Joined: Sat Aug 24, 2019 12:16 am

Sigma and Pi Bonds

Postby Jarrett Peyrefitte 2K » Sun Nov 24, 2019 7:20 pm

How can you tell the difference between a sigma and a pi bond? What are they?

Nare Arakelian Dis 3E
Posts: 58
Joined: Thu Jul 11, 2019 12:16 am

Re: Sigma and Pi Bonds

Postby Nare Arakelian Dis 3E » Sun Nov 24, 2019 7:22 pm

A sigma bond is a single bond and a double bond has one sigma and one pi bond

Mansi_1D
Posts: 50
Joined: Fri Aug 02, 2019 12:15 am

Re: Sigma and Pi Bonds

Postby Mansi_1D » Sun Nov 24, 2019 7:23 pm

The first bond that forms between atoms is always a sigma bond and any other bonds are pie bonds. So if there is a double bond, one of them is sigma bond and the other is pie bond. If it's a triple bond, one of them is a sigma bond and the other two bonds are pie bonds, and so on.

SimranSangha4I
Posts: 99
Joined: Sat Sep 14, 2019 12:17 am

Re: Sigma and Pi Bonds

Postby SimranSangha4I » Sun Nov 24, 2019 7:27 pm

Sigma is a single bond (primarily the 'inital' bond) while a double bond would be the 'next' bond, being one sigma and one pi bond.

claudia_1h
Posts: 111
Joined: Fri Aug 09, 2019 12:16 am

Re: Sigma and Pi Bonds

Postby claudia_1h » Sun Nov 24, 2019 7:29 pm

Also: sigma bonds form when two orbitals interact end-to-end, whereas pi bonds form when 2 orbitals overlap side-by-side. Note that pi bonds have electron density on each side of the internuclear axis, whereas sigma bonds have electron density along it. This will change the rotatability of the atoms!

205154661_Dis2J
Posts: 109
Joined: Wed Sep 18, 2019 12:21 am

Re: Sigma and Pi Bonds

Postby 205154661_Dis2J » Sun Nov 24, 2019 8:10 pm

A single bond is a sigma bond, while a pi bond occurs with double and triple bonds. For double bonds, there is one pi bond and sigma bond. For a triple bond, there is two sigma bonds and one pi bond.

Eugene Chung 3F
Posts: 142
Joined: Wed Nov 15, 2017 3:03 am

Re: Sigma and Pi Bonds

Postby Eugene Chung 3F » Sun Nov 24, 2019 8:22 pm

Sigma bond is the initial, or first bond, so basically all the single bonds and one of the double/triple bonds. Pi bond is the other one/ones in the double/ triple bond, or the bond that comes after sigma bond.

Natalie Benitez 1E
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Re: Sigma and Pi Bonds

Postby Natalie Benitez 1E » Wed Nov 27, 2019 1:13 am

Can we tell what hybridization state an element has if they have a sigma bond?


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