Breaking of pi and sigma bonds

(Polar molecules, Non-polar molecules, etc.)

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Kyle Harvey 4F
Posts: 45
Joined: Sat Aug 24, 2019 12:17 am

Breaking of pi and sigma bonds

Postby Kyle Harvey 4F » Sun Dec 01, 2019 11:18 pm

When two atoms rotate, and they are connected by sigma and pi bonds, will it always happen that pi bonds break first compared to sigma bonds? or are there rare occasions where a sigma bond may break first?

Bilal Pandit 1J
Posts: 98
Joined: Wed Sep 11, 2019 12:16 am

Re: Breaking of pi and sigma bonds

Postby Bilal Pandit 1J » Sun Dec 01, 2019 11:39 pm

Sigma bonds will not break if the atoms rotate, only pi bonds will.

Alice Chang 2H
Posts: 101
Joined: Fri Aug 30, 2019 12:18 am

Re: Breaking of pi and sigma bonds

Postby Alice Chang 2H » Sun Dec 01, 2019 11:41 pm

This site helps to explain sigma and pi bonds and their formation with visuals! : https://brilliant.org/wiki/sigma-and-pi-bonds/
Helps to explain why pi bonds break and sigma bonds allow for rotation :)

Eesha Chattopadhyay 2K
Posts: 104
Joined: Fri Aug 09, 2019 12:16 am

Re: Breaking of pi and sigma bonds

Postby Eesha Chattopadhyay 2K » Sun Dec 01, 2019 11:47 pm

Sigma bonds have the ability to rotate, while pi bonds do not have this ability so the pi bonds will always break

Snigdha Uppu 1G
Posts: 49
Joined: Sat Sep 07, 2019 12:15 am

Re: Breaking of pi and sigma bonds

Postby Snigdha Uppu 1G » Sun Dec 01, 2019 11:50 pm

Sigma bonds allow for rotation while pi bonds do not, so the pi bonds would break only.


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