Pointers For Appropriate Resonance Structures

Moderators: Chem_Mod, Chem_Admin

Sean Sugai 4E
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

Pointers For Appropriate Resonance Structures

Postby Sean Sugai 4E » Sun Oct 27, 2019 4:52 pm

Besides understanding that a formal charge of 0 yields the most stable resonance structure, what other pointers are there for drawing structures and predicting which one contributes the most to the actual structure?

Karyn How 1J
Posts: 50
Joined: Thu Jul 25, 2019 12:16 am

Re: Pointers For Appropriate Resonance Structures

Postby Karyn How 1J » Sun Oct 27, 2019 5:24 pm

The most important part about stable resonance structures is having formal charges that are 0 or are the closest numbers to zero. If there are negative charges, it's usually better if they are part of the more electronegative elements. Usually, you would also want to have the least electronegative element in the center if there are many elements and always make sure the electron count is accurate.

RoshniVarmaDis1K
Posts: 51
Joined: Sat Aug 24, 2019 12:16 am

Re: Pointers For Appropriate Resonance Structures

Postby RoshniVarmaDis1K » Sun Oct 27, 2019 5:27 pm

In addition to the above, keeping in mind that H prefers one bond, O prefers two bonds, N prefers three bonds, and carbon prefers four bonds will help you place double/triple bonds that can contribute to resonance within structures.


Return to “Resonance Structures”

Who is online

Users browsing this forum: No registered users and 1 guest