bond strength


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Tiffany Cao 1D
Posts: 94
Joined: Fri Sep 29, 2017 7:03 am
Been upvoted: 1 time

bond strength

Postby Tiffany Cao 1D » Sun Nov 19, 2017 5:15 pm

Why are pi bonds weaker than sigma bonds even though they make double bonds stronger?

Caitlin Mispagel 1D
Posts: 47
Joined: Tue Oct 10, 2017 7:13 am

Re: bond strength

Postby Caitlin Mispagel 1D » Sun Nov 19, 2017 5:23 pm

I read that pi bonds are weaker than sigma bonds because they overlap side to side rather than end to end. So the pi bond is weaker because there is less overlap.

Gurshaan Nagra 2F
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

Re: bond strength

Postby Gurshaan Nagra 2F » Sun Nov 19, 2017 11:13 pm

Pi bonds are weaker because there orbital paths are parallel which results in the overlap between the p-orbitals to be less than those of sigma bonds.

Daniel Vo 1B
Posts: 45
Joined: Thu Jul 13, 2017 3:00 am

Re: bond strength

Postby Daniel Vo 1B » Sun Nov 19, 2017 11:19 pm

Yeah, so even though the pi bond is weaker, it does provide some strengh to the existing bond, so it results in a double bond that would be stronger the sigma alone.


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