Sigma vs. Pi

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SydBenedict2H
Posts: 60
Joined: Wed Nov 08, 2017 3:00 am

Sigma vs. Pi

Postby SydBenedict2H » Tue Nov 27, 2018 4:22 pm

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.

Kevin Tang 4L
Posts: 83
Joined: Fri Sep 28, 2018 12:28 am

Re: Sigma vs. Pi

Postby Kevin Tang 4L » Tue Nov 27, 2018 4:26 pm

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.

105114680
Posts: 60
Joined: Fri Sep 28, 2018 12:23 am

Re: Sigma vs. Pi

Postby 105114680 » Tue Nov 27, 2018 4:26 pm

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.

Kyither Min 2K
Posts: 60
Joined: Wed Oct 03, 2018 12:15 am

Re: Sigma vs. Pi

Postby Kyither Min 2K » Wed Nov 28, 2018 9:26 pm

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.

Simran Athwal-Dis 3A
Posts: 35
Joined: Fri Sep 28, 2018 12:24 am

Re: Sigma vs. Pi

Postby Simran Athwal-Dis 3A » Wed Nov 28, 2018 9:38 pm

Hello there, how do you find out how many sigma and pi bonds are in a molecule?

Simran Athwal-Dis 3A
Posts: 35
Joined: Fri Sep 28, 2018 12:24 am

Re: Sigma vs. Pi

Postby Simran Athwal-Dis 3A » Wed Nov 28, 2018 9:42 pm

Is it true that for every double bond, there is one pi bond and for every triple bond, there are 2 pi bonds?

Yiting_Gong_4L
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Re: Sigma vs. Pi

Postby Yiting_Gong_4L » Thu Nov 29, 2018 5:58 pm

Single Bond: 1 sigma bond
Double Bond: 1 sigma bond + 1 pi bond
Triple bond: 1 sigma bond + 2 pi bonds

404982241
Posts: 47
Joined: Fri Sep 28, 2018 12:17 am

Re: Sigma vs. Pi

Postby 404982241 » Sun Dec 09, 2018 11:35 pm

the first bond is always a sigma and the next two after that are pi bonds

405021651
Posts: 46
Joined: Tue Nov 14, 2017 3:03 am

Re: Sigma vs. Pi

Postby 405021651 » Sun Dec 09, 2018 11:36 pm

The first bond is always a sigma and any bond thereafter is a pi bond

Bao Tram Nguyen
Posts: 35
Joined: Sat Aug 24, 2019 12:17 am

Re: Sigma vs. Pi

Postby Bao Tram Nguyen » Sun Oct 27, 2019 12:55 am

The first bond will always be a sigma bond and any bond after will be a pi bond

Robert Cross 1A
Posts: 35
Joined: Wed Sep 11, 2019 12:15 am

Re: Sigma vs. Pi

Postby Robert Cross 1A » Sun Oct 27, 2019 8:42 pm

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

Donavin Collins 3B
Posts: 55
Joined: Sat Sep 14, 2019 12:16 am

Re: Sigma vs. Pi

Postby Donavin Collins 3B » Sun Oct 27, 2019 8:49 pm

The first bond is a sigma bond, and then the next two would be pi bonds.


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