Page 1 of 1

Sigma v. Pi

Posted: Fri Oct 26, 2018 10:15 pm
by Hannah Faris 1C
Can someone explain the difference between a sigma and pi bond?

Thanks!!

Re: Sigma v. Pi

Posted: Fri Oct 26, 2018 11:20 pm
by 505211599
A sigma bond is a basic covalent bond whereas a public bond whereas a pi bond is a covalent bond between 2 perpendicular orbitals.

Re: Sigma v. Pi

Posted: Sat Oct 27, 2018 3:32 pm
by Elena Saab 4A
Additionally, a sigma bond is a direct overlap over the nuclear axis, whereas a pi bond is an overlap above/below that axis.

Re: Sigma v. Pi

Posted: Sun Nov 11, 2018 7:54 pm
by Carlos De La Torre 2L
A sigma bond has increased electron probability between nuclei whereas a pi bond has a nodal plane between nuclei making it higher energy than a sigma bond.

Re: Sigma v. Pi

Posted: Tue Nov 13, 2018 11:57 pm
by Grace Kim 1J
Another key note to keep in mind is that sigma bonds are stronger than pi bonds. This is because the atomic orbitals forming sigma bonds overlap to a greater extent compared to the orbitals forming pi bonds.

Here is a link of an image comparing sigma bonds and pi bonds.

https://qph.fs.quoracdn.net/main-qimg-a356d285ef6c1d906935ed88802adfac-c

Re: Sigma v. Pi

Posted: Wed Nov 14, 2018 11:15 pm
by Kayla Vo 1B
In addition it is also good to know that a sigma bond can exist without a pi bond, but a pi bond cannot exist without a sigma bond.

Re: Sigma v. Pi

Posted: Sat Nov 17, 2018 1:56 am
by lukezhang2C
Sigma bonds result from overlapping end-end atomic orbitals while pi bonds are overlapping side to side in a perpendicular plane.