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resonance importance?

Posted: Tue Nov 05, 2019 10:58 am
by cassidysong 1K
I know that a resonant structure lowers the energy of a molecule to make it more stable but I don't really understand why having a mixture of structures help lowers the energy. Any insight would be helpful

Re: resonance importance?

Posted: Tue Nov 05, 2019 11:01 am
by Parker Smith
Resonance structures are more stable because they involve the delocalization of electrons. Therefore, they don't form negative/positive regions on the molecule, but are delocalized and neutral throughout the molecule. This in turn lowers the molecules energy state making it more stable.

Re: resonance importance?

Posted: Tue Nov 05, 2019 3:15 pm
by Amy Pham 1D
Resonance structures show the different versions of the Lewis structure that "blend" together to form the actual form of the molecule. They are necessary to show that the delocalized electrons are not just stationary in one spot, they are located in locations determined by the blending of the resonance structures that help to lower energy.

Re: resonance importance?

Posted: Wed Nov 06, 2019 10:27 pm
by Matthew Chan 1B
Electrons don't actually stay in place like how they look in Lewis structures. They are not stationary. They are constantly moving around and thus, the resonance structures allow us to get a better picture of what the actual molecule looks like, since resonance depicts how the electrons may move around.

Re: resonance importance?

Posted: Thu Nov 07, 2019 9:07 pm
by Victoria Otuya 4F
Why is it important to draw the resonance structure?

Re: resonance importance?

Posted: Thu Nov 07, 2019 9:38 pm
by Destiny_Ryales_3J
So are all these answers in short saying that the resonance structures show how electrons may move to have the most stable interactions possible?

Re: resonance importance?

Posted: Fri Nov 08, 2019 10:14 pm
by MeeraBhagat
Victoria Otuya 4F wrote:Why is it important to draw the resonance structure?

it is important to draw all of the resonance structures because it allows us to better understand the concept of delocalization of electrons. It shows that there are certain types of bonds in the molecule, but that the bond is not located in one specific case, and is instead blended throughout the structure. It reiterates that the electrons can be anywhere.

Re: resonance importance?

Posted: Fri Nov 08, 2019 11:56 pm
by erica thompson 4I
It's also important to know that electrons don't "jump" from one resonance structure to the other, but rather the different resonance structures show the different placements of electrons as they constantly move about.