Why are sigma bonds stronger than pi bonds?

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janeane Kim4G
Posts: 31
Joined: Fri Sep 28, 2018 12:28 am

Why are sigma bonds stronger than pi bonds?

Postby janeane Kim4G » Sun Nov 25, 2018 2:41 am

Since pi bonds have more than one area of interception, wouldn’t that mean the bonds formed form a pi bond would have more area of intersection and therefore more strength?

Josephine Chan 1B
Posts: 31
Joined: Fri Sep 28, 2018 12:17 am

Re: Why are sigma bonds stronger than pi bonds?

Postby Josephine Chan 1B » Sun Nov 25, 2018 8:53 am

a head-on/linear overlap (sigma bond) will be stronger as opposed to a perpendicular/sideways overlap (pi bond)

KarlaArevalo2F
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Re: Why are sigma bonds stronger than pi bonds?

Postby KarlaArevalo2F » Sun Nov 25, 2018 7:28 pm

there is more overlap in sigma bonds than in pi bonds which makes for the stronger bond

Diviya Khullar 1G
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Joined: Fri Sep 28, 2018 12:19 am

Re: Why are sigma bonds stronger than pi bonds?

Postby Diviya Khullar 1G » Sun Nov 25, 2018 8:03 pm

Sigma bonds result from the head-on overlap of the orbitals of the two atoms, which has more area of overlap than pi bonds which result from the parallel overlap of orbitals. That is why sigma bonds are stronger.

Hadji Yono-Cruz 2L
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Joined: Fri Sep 28, 2018 12:26 am

Re: Why are sigma bonds stronger than pi bonds?

Postby Hadji Yono-Cruz 2L » Tue Nov 27, 2018 3:10 pm

Sigma bonds head-on overlap puts the electron closer to the other atom's nucleus. The pi bonds overlap does not put the electron as close in comparison to the sigma bond, so the sigma bond is stronger.

Elizabeth Kim 4E
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Joined: Fri Sep 28, 2018 12:29 am

Re: Why are sigma bonds stronger than pi bonds?

Postby Elizabeth Kim 4E » Thu Nov 29, 2018 1:37 am

The greater overlap in the sigma bonds makes it stronger than the pi bonds.

Imelda Mena 3I
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Joined: Thu Oct 02, 2014 3:00 am

Re: Why are sigma bonds stronger than pi bonds?

Postby Imelda Mena 3I » Thu Nov 29, 2018 11:42 am

I understand the argument that sigma bonds are stronger because they have more overlap, but aren't longer bonds weaker because they are more easily broken? aka sigma bonds versus double bonds which are shorter in length as as a result we say they are stronger because they don't break as easily?

Ahmed Mahmood 4D
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Joined: Fri Sep 28, 2018 12:28 am

Re: Why are sigma bonds stronger than pi bonds?

Postby Ahmed Mahmood 4D » Sat Dec 08, 2018 11:05 pm

For one, sigma bonds go directly into one another and have a greater overlap, which makes it stronger than pi bonds, which must go outwards and then connect across a gap. Moreover, I believe interactions w/ multiple bonds are stronger because they have multiple bonds, not necessarily because they have pi bonds. Someone correct me if I'm wrong.

405098546
Posts: 32
Joined: Fri Sep 28, 2018 12:24 am

Re: Why are sigma bonds stronger than pi bonds?

Postby 405098546 » Sat Dec 08, 2018 11:13 pm

sigma bonds have more overlap and the pi bonds only make contact side by side

Manas_Varma_4B
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Re: Why are sigma bonds stronger than pi bonds?

Postby Manas_Varma_4B » Sun Dec 09, 2018 2:07 pm

Sigma bonds overlap head to head, as opposed to pi bonds that overlap through the sides of p orbitals.

Heidi Ibarra Castillo 1D
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: Why are sigma bonds stronger than pi bonds?

Postby Heidi Ibarra Castillo 1D » Sun Dec 09, 2018 7:43 pm

The sigma bonds have a greater overlap


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