Which resonance structure is the most stable?

Moderators: Chem_Mod, Chem_Admin

Claudia Luong 4K
Posts: 59
Joined: Fri Sep 28, 2018 12:25 am

Which resonance structure is the most stable?

Postby Claudia Luong 4K » Sat Dec 08, 2018 3:42 am

When drawing the Lewis structure of the ClO2+ ion, there are different possible structures. One uses double bonds for both the Cl-O bonds while another uses a double bond for one of the Cl-O bonds and a single bond for the other. Both end up with the same overall formal charge of +1. If I am not mistaken, I think that the structure with the overall formal charge closest to zero is usually considered the most stable, but how do you determine the most stable structure when both possible structures have the same value for the overall formal charge such as in this case?

Margaret Akey
Posts: 80
Joined: Fri Sep 28, 2018 12:18 am

Re: Which resonance structure is the most stable?

Postby Margaret Akey » Sat Dec 08, 2018 9:01 am

most stable structure is when middle atom's formal charge is 0 (Cl in this case)

605168557
Posts: 65
Joined: Fri Sep 28, 2018 12:18 am

Re: Which resonance structure is the most stable?

Postby 605168557 » Sat Dec 08, 2018 4:22 pm

if both possible structures have similar values for FC, then when the central atom has a formal charge = 0 that should be the most stable resonance structure.


Return to “Lewis Structures”

Who is online

Users browsing this forum: No registered users and 3 guests