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Sigma and Pi Bonds

Posted: Sun Nov 24, 2019 7:20 pm
by Jarrett Peyrefitte 2K
How can you tell the difference between a sigma and a pi bond? What are they?

Re: Sigma and Pi Bonds

Posted: Sun Nov 24, 2019 7:22 pm
by Nare Arakelian Dis 3E
A sigma bond is a single bond and a double bond has one sigma and one pi bond

Re: Sigma and Pi Bonds

Posted: Sun Nov 24, 2019 7:23 pm
by Mansi_1D
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.

Re: Sigma and Pi Bonds

Posted: Sun Nov 24, 2019 7:27 pm
by SimranSangha4I
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.

Re: Sigma and Pi Bonds

Posted: Sun Nov 24, 2019 7:29 pm
by claudia_1h
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!

Re: Sigma and Pi Bonds

Posted: Sun Nov 24, 2019 8:10 pm
by 205154661_Dis2J
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.

Re: Sigma and Pi Bonds

Posted: Sun Nov 24, 2019 8:22 pm
by Eugene Chung 3F
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.

Re: Sigma and Pi Bonds

Posted: Wed Nov 27, 2019 1:13 am
by Natalie Benitez 1E
Can we tell what hybridization state an element has if they have a sigma bond?