bond length

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aaronharouni
Posts: 72
Joined: Fri Sep 28, 2018 12:15 am

bond length

Postby aaronharouni » Wed Nov 07, 2018 1:21 am

How are bond lengths the same if there are two double bonds and one single bond? Is it bc of resonance?

Francis_Nguyen3D
Posts: 35
Joined: Fri Sep 28, 2018 12:24 am

Re: bond length

Postby Francis_Nguyen3D » Wed Nov 07, 2018 10:44 am

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.

Tony Chung 2I
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: bond length

Postby Tony Chung 2I » Wed Nov 07, 2018 9:22 pm

It is because of resonance. Resonance tells us that there is more than one lewis structure for a specific compound.

Hailey Boehm 2H
Posts: 71
Joined: Fri Sep 28, 2018 12:24 am

Re: bond length

Postby Hailey Boehm 2H » Thu Nov 08, 2018 2:10 pm

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.

105002507
Posts: 30
Joined: Fri Sep 28, 2018 12:15 am

Re: bond length

Postby 105002507 » Sun Nov 11, 2018 4:33 pm

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

Abby-Hile-1F
Posts: 46
Joined: Fri Sep 28, 2018 12:16 am

Re: bond length

Postby Abby-Hile-1F » Sun Nov 11, 2018 4:35 pm

How would you find the bond length in a resonance structure? Would it just be the average of the different length bonds?


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