Resonance Structures

Moderators: Chem_Mod, Chem_Admin

Krista Mercado 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Resonance Structures

Postby Krista Mercado 1B » Thu Nov 08, 2018 11:12 am

How can you determine if a certain compound requires a resonance structure?

Kobe_Wright
Posts: 83
Joined: Fri Sep 28, 2018 12:16 am

Re: Resonance Structures

Postby Kobe_Wright » Thu Nov 08, 2018 11:18 am

Check the formal charge of the lewis strucutre you drew, and then see if you can optimize it at all and come up with the same formal charge. If you can do this then there is resonance.

shaunajava2e
Posts: 66
Joined: Fri Sep 28, 2018 12:26 am

Re: Resonance Structures

Postby shaunajava2e » Thu Nov 08, 2018 11:26 am

the location of a bond in a structure can be interchanged, there is a resonance structure.
in this example, the double bond can be written on either side and therefore there is resonance
Attachments
Screen Shot 2018-11-08 at 11.24.35 AM.png

Tarika Gujral 1K
Posts: 62
Joined: Fri Sep 28, 2018 12:27 am

Re: Resonance Structures

Postby Tarika Gujral 1K » Thu Nov 08, 2018 12:42 pm

If there is an equivalent Lewis structure that can be formed (overall formal charge value remains the same)
simply by exchanging positions of atoms — then a molecule has resonance.


Return to “Resonance Structures”

Who is online

Users browsing this forum: No registered users and 1 guest