T-shape  [ENDORSED]

(Polar molecules, Non-polar molecules, etc.)

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Cam Bear 2F
Posts: 60
Joined: Thu Jul 27, 2017 3:01 am

T-shape

Postby Cam Bear 2F » Wed Nov 29, 2017 4:54 pm

Hi guys! I was just wondering when drawing the T-shape for a molecule with 5 regions of electron density, why wouldn't the 2 lone pairs be at the axial positions instead of 2 of the 3 equatorial positions?

Chem_Mod
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Re: T-shape  [ENDORSED]

Postby Chem_Mod » Wed Nov 29, 2017 5:44 pm

This question has already been asked and answered several times on Chemistry Community in the last couple of weeks. The short answer is that it is better for the more repulsive, larger lone pair electron dense regions to be 90 degrees from only 2 axial position atoms than 90 degrees from the 3 equatorial atoms.


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