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Sigma vs. Pi

Posted: Tue Nov 27, 2018 4:22 pm
by SydBenedict2H
Im having trouble being able to easily identify when a bond is a sigma bond vs. when its a pi bond. Does anyone have any quick and easy tips? I feel like its super simple and im just way over complicating it.

Re: Sigma vs. Pi

Posted: Tue Nov 27, 2018 4:26 pm
by Kevin Tang 4L
The first bond you draw is sigma, any additional bonds are pi.

Single bonds are always sigma bonds. Double bonds have one sigma and one pi bond. Triple bonds have one sigma and two pi bonds.

Hope this helps and correct me if im wrong. Thanks.

Re: Sigma vs. Pi

Posted: Tue Nov 27, 2018 4:26 pm
by 105114680
A single bond is made up of one sigma bond. A double bond is made up of one sigma bond and one pi bond. A triple bond is made up of one sigma bond and two pi bonds. All bonds will have at least one sigma bond and then depending on whether it is a single, double, or triple bond it will have either no pi bonds, one pi bond, or two pi bonds.

Re: Sigma vs. Pi

Posted: Wed Nov 28, 2018 9:26 pm
by Kyither Min 2K
A single bond will only have 1 sigma bond. The very first bond made is a sigma bond and each additional bond is a pi bond. I like to count the number of bonds and save one for sigma and the rest as pi. So amount of pi bonds are # of bonds - 1.

Re: Sigma vs. Pi

Posted: Wed Nov 28, 2018 9:38 pm
by Simran Athwal-Dis 3A
Hello there, how do you find out how many sigma and pi bonds are in a molecule?

Re: Sigma vs. Pi

Posted: Wed Nov 28, 2018 9:42 pm
by Simran Athwal-Dis 3A
Is it true that for every double bond, there is one pi bond and for every triple bond, there are 2 pi bonds?

Re: Sigma vs. Pi

Posted: Thu Nov 29, 2018 5:58 pm
by Yiting_Gong_4L
Single Bond: 1 sigma bond
Double Bond: 1 sigma bond + 1 pi bond
Triple bond: 1 sigma bond + 2 pi bonds

Re: Sigma vs. Pi

Posted: Sun Dec 09, 2018 11:35 pm
by 404982241
the first bond is always a sigma and the next two after that are pi bonds

Re: Sigma vs. Pi

Posted: Sun Dec 09, 2018 11:36 pm
by 405021651
The first bond is always a sigma and any bond thereafter is a pi bond

Re: Sigma vs. Pi

Posted: Sun Oct 27, 2019 12:55 am
by Bao Tram Nguyen
The first bond will always be a sigma bond and any bond after will be a pi bond

Re: Sigma vs. Pi

Posted: Sun Oct 27, 2019 8:42 pm
by Robert Cross 1A
Simran Athwal-Dis 3A wrote:Is it true that for every double bond, there is one pi bond and for every triple bond, there are 2 pi bonds?


Yes.

Single bond = 1 sigma bond, 0 pi bonds
Double bond= 1 sigma bond, 1 pi bond
Triple bond= 1 sigma bond, 2 pi bonds

Re: Sigma vs. Pi

Posted: Sun Oct 27, 2019 8:49 pm
by Donavin Collins 3B
The first bond is a sigma bond, and then the next two would be pi bonds.