pi and sigma bonds

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

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Madison Hurst
Posts: 62
Joined: Fri Sep 28, 2018 12:26 am

pi and sigma bonds

Postby Madison Hurst » Sun Nov 25, 2018 10:41 am

Which bond has more energy pi or sigma?

katie_sutton1B
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

Re: pi and sigma bonds

Postby katie_sutton1B » Sun Nov 25, 2018 10:48 am

A sigma bond is stronger because of the head to head overlapping, while a pi bond is weaker because of side to side overlapping. A sigma bond requires more energy to break than a pi bond does.

RoopshaChatterjee 1G
Posts: 30
Joined: Fri Sep 28, 2018 12:17 am

Re: pi and sigma bonds

Postby RoopshaChatterjee 1G » Sun Nov 25, 2018 12:59 pm

Does knowing whether a bond is a pi bond or sigma bond help us figure out the structure or shape of the molecule?

104904344
Posts: 27
Joined: Fri Sep 28, 2018 12:27 am

Re: pi and sigma bonds

Postby 104904344 » Sun Nov 25, 2018 2:00 pm

If you know a bond is a pi bond, and there is one pi bond in a double bond and two pi bonds in a triple bond, it may be helpful in determining correct lewis structures as you know the bond cannot be a single bond.

Tyra Nguyen 4H
Posts: 74
Joined: Fri Sep 28, 2018 12:25 am

Re: pi and sigma bonds

Postby Tyra Nguyen 4H » Sun Nov 25, 2018 2:18 pm

There is a greater extent of orbital overlap in a sigma bond, thus it is a stronger bond that requires more energy to break.

Hedi Zappacosta 1E
Posts: 66
Joined: Fri Sep 28, 2018 12:27 am

Re: pi and sigma bonds

Postby Hedi Zappacosta 1E » Sun Nov 25, 2018 4:05 pm

Can someone explain pi and sigma bonds and how to determine which is which?

Riley Dean 2D
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Re: pi and sigma bonds

Postby Riley Dean 2D » Sun Nov 25, 2018 4:09 pm

every bond begins with a sigma bond, then when you have a double bond you have a sigma bond and pi bond, the bonds after that first sigma bond are going to be pi bonds

davidryan3f
Posts: 63
Joined: Fri Sep 28, 2018 12:23 am

Re: pi and sigma bonds

Postby davidryan3f » Sun Nov 25, 2018 4:32 pm

Sigma bonds have more energy because since they are stronger bonds, they require more energy to be broken than pi bonds. Therefore they have more energy themselves.

Lopez_Melissa-Dis4E
Posts: 66
Joined: Fri Sep 28, 2018 12:20 am

Re: pi and sigma bonds

Postby Lopez_Melissa-Dis4E » Sun Nov 25, 2018 4:57 pm

Can someone please explain the concepts behind pi and sigma bonds?

Andrewwiner4D
Posts: 32
Joined: Fri Sep 28, 2018 12:28 am

Re: pi and sigma bonds

Postby Andrewwiner4D » Sun Nov 25, 2018 4:59 pm

If your pi bond refers to the p-p orbitals overlapping, then pi bond is weaker than sigma bond. Double bond is stronger than single bond because double bond consists of a pi bond and a sigma bond. Whereas sigma bond results from s-orbital overlap which has greater area of interaction and overlapping.


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