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Abby Ellstrom 1I
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Joined: Fri Sep 29, 2017 6:04 am


Postby Abby Ellstrom 1I » Wed Nov 08, 2017 11:37 pm

What is the difference between a sigma and a pi bond?

Alex Nechaev 1I
Posts: 50
Joined: Fri Sep 29, 2017 6:04 am

Re: Bonding

Postby Alex Nechaev 1I » Thu Nov 09, 2017 12:24 am

This website has a really good description of the differences and includes diagrams: ... gQO1ROPLfY
Basically, a sigma bond is formed by end to end overlapping while a pi bond is formed laterally, with the two p orbitals attaching side by side.

Angelica Mercado 1A
Posts: 21
Joined: Fri Sep 29, 2017 6:04 am

Re: Bonding

Postby Angelica Mercado 1A » Fri Nov 17, 2017 9:13 pm

Also, a sigma bond allows the bound atoms to rotate which means the bond has electron density with cylindrical symmetry around the internuclear axis. Pi bonds don't allow bound atoms to rotate and there's electron density above and below the internuclear axis.

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