Bent molecular geometry

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

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Kirsty Star 2H
Posts: 48
Joined: Fri Sep 28, 2018 12:24 am

Bent molecular geometry

Postby Kirsty Star 2H » Fri Dec 07, 2018 3:23 pm

Are both AX2E and AX2E2 bent shaped? Is there a difference?

Carine Tamamian 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

Re: Bent molecular geometry

Postby Carine Tamamian 2B » Fri Dec 07, 2018 3:27 pm

Yes, they both are bent, it's just that AX2E has an angle <120, and AX2E2 is <109, so the 2 lone pairs are just providing more repulsion than the one lone pair.

Rosha Mamita 2H
Posts: 63
Joined: Fri Sep 28, 2018 12:19 am

Re: Bent molecular geometry

Postby Rosha Mamita 2H » Fri Dec 07, 2018 5:49 pm

AX2E2 takes bond angles similar to those of tetrahedral, except the great repulsion of both lone pairs makes the bond angle less than 109.5. AX2E Two lone pairs creates more repulsion than one lone pair

Daniel Bowen 3I
Posts: 32
Joined: Fri Sep 28, 2018 12:24 am

Re: Bent molecular geometry

Postby Daniel Bowen 3I » Fri Dec 07, 2018 5:56 pm

For AX2E2 there are 4 regions of electron density therefore the angle measures are treated as those of a tetrahedral while AX2E has three regions of electron density and the angle measures should be treated as such.


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