Lewis structure of SO2Cl2

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Juliana Logan 1A
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Joined: Fri Sep 25, 2015 3:00 am

Lewis structure of SO2Cl2

Postby Juliana Logan 1A » Sat Oct 31, 2015 6:05 pm

In question 31 from the homework, it asks for the Lewis structure of SO2Cl2. I drew it with S as the central atom, with double bonds on the oxygens and single bonds on the chlorines, however in the solutions manual they are all single bonds. Wouldn't it be a more stable atom if the oxygens had double bonds?

Sandeep Gurram 2E
Posts: 42
Joined: Fri Sep 25, 2015 3:00 am

Re: Lewis structure of SO2Cl2

Postby Sandeep Gurram 2E » Sat Oct 31, 2015 6:54 pm

Yes, according to the general rules of formal charge, if sulfur had double bonds with both oxygen atoms, the entire compound would technically be considered in a lower energy, more stable state. However, remember that formal charge is just a general set of rules you can follow, it doesn't mean that formal charge always determines the correct structure. This compound seems to be an exception the formal charge rules.

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