Lewis Structure of CO

Moderators: Chem_Mod, Chem_Admin

Steven Garcia 1H
Posts: 79
Joined: Fri Sep 28, 2018 12:16 am

Lewis Structure of CO

Postby Steven Garcia 1H » Thu Dec 06, 2018 11:02 pm

I understand that the CO bond is a triple bond, but I was curious why the Lewis structure can't be written as a double bond? I was able to write it as a double bond with no charges on either atom. Nonetheless, the CO triple bond lewis structure is preferred although it results in charges of +1 and -1 on the atoms. Why is this?

Aidan Ryan 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:17 am

Re: Lewis Structure of CO

Postby Aidan Ryan 1B » Thu Dec 06, 2018 11:35 pm

Using a double bond I assume carbon had more than 4 lone pair e- around the carbon if I am not mistaken. Along with the double bond the FC would be -2. This would not be preferred.

pamcoronel1H
Posts: 45
Joined: Fri Sep 28, 2018 12:25 am

Re: Lewis Structure of CO

Postby pamcoronel1H » Thu Dec 06, 2018 11:56 pm

If C and O were double bonded, the FC of C would be -2 and the FC of O would be 0, adding up to a total charge of -2. When C and O are triple bonded however, the FC of C is -1 and the FC of O is 1, which add up to a charge of 0, which is a more stable structure.

Karan Thaker 2L
Posts: 75
Joined: Fri Sep 28, 2018 12:26 am

Re: Lewis Structure of CO

Postby Karan Thaker 2L » Thu Dec 06, 2018 11:57 pm

Ya you can't have the greater formal charge distributed along the less electronegative atom.


Return to “Lewis Structures”

Who is online

Users browsing this forum: No registered users and 1 guest