Sigma & Pi Bonds

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vanessas0123
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

Sigma & Pi Bonds

Postby vanessas0123 » Sun Nov 24, 2019 3:21 pm

Why are sigma bonds are generally stronger than pi bonds? What is their difference?

Nicholas Chin 1G
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

Re: Sigma & Pi Bonds

Postby Nicholas Chin 1G » Sun Nov 24, 2019 3:24 pm

Sigma bonds have better overlap because their tips touch. Pi bonds are side to side interactions so there is less overlap.

Ashley Kim 3F
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Sigma & Pi Bonds

Postby Ashley Kim 3F » Sun Nov 24, 2019 3:28 pm

There is a greater overlap between atomic orbitals in sigma bonds, meaning that it is more likely that more electrons are present in overlap.

Qilan Li 4I
Posts: 54
Joined: Mon Jun 17, 2019 7:23 am

Re: Sigma & Pi Bonds

Postby Qilan Li 4I » Sun Nov 24, 2019 3:35 pm

They are both covalent bonds formed by the overlap of atomic orbitals. Sigma bonds are formed by end-to-end overlaps and pi bonds are formed by side-to-side overlaps (the lobes of the orbitals overlapping one another). Sigma bonds are stronger because there is generally more overlap compared to pi bonds.

Salma Fawzi 4G
Posts: 50
Joined: Wed Sep 18, 2019 12:20 am

Re: Sigma & Pi Bonds

Postby Salma Fawzi 4G » Sun Nov 24, 2019 3:40 pm

Sigma bonds have more overlap, while pi bonds have less overlap.

brennayoung
Posts: 51
Joined: Fri Sep 20, 2019 12:17 am

Re: Sigma & Pi Bonds

Postby brennayoung » Sun Nov 24, 2019 3:55 pm

would a single sigma bond be stronger than say 2 pi bonds though?

Natalie Benitez 1E
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Re: Sigma & Pi Bonds

Postby Natalie Benitez 1E » Sun Nov 24, 2019 7:13 pm

What is the bond between an s-orbital and an s-orbital called?

Natalie Benitez 1E
Posts: 100
Joined: Fri Aug 02, 2019 12:15 am

Re: Sigma & Pi Bonds

Postby Natalie Benitez 1E » Sun Nov 24, 2019 7:13 pm

Why is it that the sigma is the first bond to always form and not the pi bond?

Merin Padayatty 3G
Posts: 52
Joined: Thu Jul 11, 2019 12:16 am

Re: Sigma & Pi Bonds

Postby Merin Padayatty 3G » Sat Nov 30, 2019 4:23 pm

Sigma bonds are stronger than pi bonds because the atomic orbitals forming sigma bonds overlap to a greater extent than the orbitals forming pi bonds.

CMaduno_1L
Posts: 102
Joined: Wed Sep 18, 2019 12:18 am

Re: Sigma & Pi Bonds

Postby CMaduno_1L » Sat Nov 30, 2019 5:28 pm

I believe the bond formed between an s-orbital and an s-orbital is a sigma bond.


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