Lewis Structure of POCL3?

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Antonio Melgoza 2K
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Lewis Structure of POCL3?

Postby Antonio Melgoza 2K » Wed Oct 28, 2015 10:28 pm

Can the lewis structure of POCL3 have a single bond and 3 pairs of electrons or does it have to be a double bond with 2 pairs of electrons? And if it does need to have a double bond, why?

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Joined: Fri Sep 25, 2015 3:00 am

Re: Lewis Structure of POCL3?

Postby biaaancaaaa » Wed Oct 28, 2015 11:27 pm

You would have to leave the P-O bond as a double bond with two lone pair electrons because when you calculate the formal charge, it would be zero at every atom. If you left it as a single bond with three lone pairs, Oxygen would have a FC of -1 and P would have a formal charge of 1. Although you can do it both ways, double bonding would be the best option.

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