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bond length

Posted: Wed Nov 07, 2018 1:21 am
by aaronharouni
How are bond lengths the same if there are two double bonds and one single bond? Is it bc of resonance?

Re: bond length

Posted: Wed Nov 07, 2018 10:44 am
by Francis_Nguyen3D
Bond lengths could be the same because of resonance. Resonance molecules do not have one true lewis structure, but rather a variety of structures. Because of this, the resonance lewis structure of a given molecule would be a hybrid of all the possible structures that could be created. This would make bond lengths the same even if they are double and single bonds.

Re: bond length

Posted: Wed Nov 07, 2018 9:22 pm
by Tony Chung 2I
It is because of resonance. Resonance tells us that there is more than one lewis structure for a specific compound.

Re: bond length

Posted: Thu Nov 08, 2018 2:10 pm
by Hailey Boehm 2H
Yes, it is because of resonance. Electrons are delocalized in resonance structures. For example, Benzene, C6H6 has 3 delocalized double bonds. Lewis structures therefore place limitations on depicting the true e- placement in resonance structures, because they prevent us from depicting the blending of structures.

Re: bond length

Posted: Sun Nov 11, 2018 4:33 pm
by 105002507
The bond lengths are still the same probably because of resonance. All bond lengths are the same even though they are single or double because resonances are hybrids

Re: bond length

Posted: Sun Nov 11, 2018 4:35 pm
by Abby-Hile-1F
How would you find the bond length in a resonance structure? Would it just be the average of the different length bonds?