Pi Bonds vs. Sigma Bonds


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elliekauffman1I
Posts: 15
Joined: Thu Jul 13, 2017 3:00 am

Pi Bonds vs. Sigma Bonds

Postby elliekauffman1I » Wed Nov 22, 2017 3:45 pm

When looking at molecule, how do you determine if it forms a pi bond, sigma bond, or neither?

RaviAmin1H
Posts: 20
Joined: Thu Jul 13, 2017 3:00 am

Re: Pi Bonds vs. Sigma Bonds

Postby RaviAmin1H » Wed Nov 22, 2017 4:06 pm

Overall all single bonds are sigma bonds and in double or triple bonds. All bonds except the first one are pi bonds. So a double bond has 1 pi bond and a triple bond has 2 pi bonds. Both double and triple bonds have 1 sigma bond.

Cynthia Tsang
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Re: Pi Bonds vs. Sigma Bonds

Postby Cynthia Tsang » Thu Nov 23, 2017 12:14 pm

Sigma bonds are always the first bonds that form. Pi bonds are all the bonds after that. So the second and triple bond are pi bonds and the first bond is still a sigma bond.

Lauryn Jordan 1F
Posts: 76
Joined: Fri Sep 29, 2017 7:07 am

Re: Pi Bonds vs. Sigma Bonds

Postby Lauryn Jordan 1F » Thu Nov 23, 2017 1:29 pm

a single bond has a sigma bond, a double bond has a sigma bond and a pi bond, and a triple bond has a sigma bond and 2 pi bonds

Jesus Rodriguez 1J
Posts: 53
Joined: Sat Jul 22, 2017 3:00 am

Re: Pi Bonds vs. Sigma Bonds

Postby Jesus Rodriguez 1J » Sun Nov 26, 2017 6:17 pm

The first bonds are known as sigma bonds and the rest of the bonds are pi bonds. For example, when there is a triple bond, the first is a sigma bond and the 2nd and 3rd bonds are pi bonds.

JonathanLam1G
Posts: 25
Joined: Fri Sep 29, 2017 7:04 am

Re: Pi Bonds vs. Sigma Bonds

Postby JonathanLam1G » Sun Nov 26, 2017 6:49 pm

Sigma bonds are free to rotate and change orientation, while pi bonds are locked in place since they have two points of interference.

Ashley Fallon 3C
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Re: Pi Bonds vs. Sigma Bonds

Postby Ashley Fallon 3C » Sun Nov 26, 2017 11:05 pm

Sigma bonds are the FIRST bonds to be made between two atoms. They are made from hybridized orbitals. Pi bonds are the SECOND and THIRD bonds to be made. They are made from leftover "p" orbitals

Shreya Ramineni 2L
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: Pi Bonds vs. Sigma Bonds

Postby Shreya Ramineni 2L » Mon Nov 27, 2017 1:19 pm

Single bonds are sigma bonds. Double bonds are a sigma bond and a pi bond. Triple bonds are a sigma bond and 2 pi bonds.


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