Delocalization

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Ashley Osorio
Posts: 54
Joined: Thu Jul 11, 2019 12:17 am

Delocalization

Postby Ashley Osorio » Mon Dec 02, 2019 9:30 pm

How can we tell the difference between a structure with localized electrons versus delocalized electrons?

Pablo 1K
Posts: 118
Joined: Sat Feb 02, 2019 12:15 am

Re: Delocalization

Postby Pablo 1K » Mon Dec 02, 2019 9:38 pm

Perhaps when arrows are drawn in the molecule it is a good representation of when a stronger atom pulls on e- and delocalizes charge from an atom with a -1 on it.

Kayli Choy 2F
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Re: Delocalization

Postby Kayli Choy 2F » Tue Dec 03, 2019 3:50 pm

A structure has delocalized electrons when it has resonance structures. You can tell if a Lewis structure has resonance structures if a double bond can be placed in multiple different places without affecting the number of valence electrons the molecule must have.

AprilPaz
Posts: 51
Joined: Wed Sep 18, 2019 12:18 am

Re: Delocalization

Postby AprilPaz » Tue Dec 03, 2019 3:52 pm

Resonance is the delocalization of electrons. Thus, if you have a structure with resonance, delocalization is occurring.

KTran 1I
Posts: 52
Joined: Fri Aug 30, 2019 12:15 am

Re: Delocalization

Postby KTran 1I » Sun Dec 08, 2019 11:41 pm

Any structure that has resonance has delocalization and these bond lengths are in between that of single bonds and double bonds.

Brandon Tao 1K
Posts: 100
Joined: Sat Aug 17, 2019 12:15 am

Re: Delocalization

Postby Brandon Tao 1K » Sun Dec 08, 2019 11:44 pm

Generally when there is resonance in the Lewis Structure there is also delocalization

Samudrala_Vaishnavi 3A
Posts: 93
Joined: Wed Sep 30, 2020 9:34 pm

Re: Delocalization

Postby Samudrala_Vaishnavi 3A » Mon Nov 02, 2020 7:39 am

So, delocalization usually occurs with elements that have covalent bonds that can contribute to resonance. Certain lewis structures of the same compound or molecule are lower energy than others and we ideally want the lowest energy combination, which is explored with the concept of formal charge but with delocalization, it is referring how these different patterns are made: moving around the double bonds of electrons to different elements but without changing the central element.


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