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Pi bonds

Posted: Sun Dec 09, 2018 12:11 am
by Peter Nguyen 2I
Why are pi bonds always unhybridized?

Re: Pi bonds

Posted: Sun Dec 09, 2018 12:20 am
by keyaluo4C
For sp2, when there are more than 3 valence electrons in the outer shell, three will hybridize and the rest will form pi bonds. This happens because it causes no leftover elections and is optimal.

Re: Pi bonds

Posted: Sun Dec 09, 2018 12:35 am
by Iona Pay

Re: Pi bonds

Posted: Sun Nov 03, 2019 10:24 pm
by Ian Morris 3C
Iona Pay wrote:I found this video helpful for understanding the hybridization of pi bonds.

https://www.khanacademy.org/science/organic-chemistry/gen-chem-review/hybrid-orbitals-jay/v/pi-bonds-and-sp2-hybridized-orbitals


This video is very helpful. Thanks for sharing

Re: Pi bonds

Posted: Thu Nov 07, 2019 8:30 am
by Katherine Brenner 3H
When you have a double bond, you have 2 pi bonds and 1 sigma bond. When you find the hybridization level, you only count the the number of sigma bonds or hybrid bonds.

Re: Pi bonds

Posted: Thu Nov 07, 2019 2:20 pm
by 605110118
What is the difference between pi and sigma?

Re: Pi bonds

Posted: Fri Nov 08, 2019 9:46 am
by 505312292
605110118 wrote:What is the difference between pi and sigma?

sigma is all single bonds and pi is the second bond in a double bond

Re: Pi bonds

Posted: Fri Nov 08, 2019 10:04 am
by Angela Patel 2J
505312292 wrote:
605110118 wrote:What is the difference between pi and sigma?

sigma is all single bonds and pi is the second bond in a double bond


I still don't really understand this concept, can someone explain it further?

Re: Pi bonds

Posted: Fri Nov 08, 2019 11:13 am
by Sartaj Bal 1J
In a sigma bond, electron density is usually concentrated between the nuclei of the two bonding atoms. In a pi bond, the electron density is usually concentrated below and above the plane of nuclei in the two bonding atoms. A single bond is referred to as a sigma bond. In a double bond or triple bond, one bond is a sigma bond and the second and third respectively are pi bonds.