Distorted Bond Angles

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

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Distorted Bond Angles

Postby 905085650 » Sun Nov 18, 2018 9:14 pm

Can someone explain to me what makes a bond angle distorted? And is it always slightly less than the typical angle when it is distorted?
Thank you!!

Kyleigh Follis 2H
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Joined: Fri Sep 28, 2018 12:28 am
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Re: Distorted Bond Angles

Postby Kyleigh Follis 2H » Sun Nov 18, 2018 9:27 pm

Bond angles will deviate from their ideal values according to the rule that lone pairs repel other electrons more strongly than bonding pairs. Although lone pairs are clearly smaller than atoms, they need to be closer to the nucleus of an atom than a bonding pair. Being closer to the central atom causes lone-pairs take up more of the available 'bonding space'.

Dina Geotas 4A
Posts: 61
Joined: Fri Sep 28, 2018 12:29 am

Re: Distorted Bond Angles

Postby Dina Geotas 4A » Sun Nov 18, 2018 9:29 pm

Lone pairs of a molecules make the structure of a molecule distorted because the lone pairs repulsions are stronger than the repulsions between bond pair repulsions. This makes the angles between the atoms slightly smaller!

Tessa Lawler 1A
Posts: 57
Joined: Fri Sep 28, 2018 12:18 am

Re: Distorted Bond Angles

Postby Tessa Lawler 1A » Sun Nov 18, 2018 11:47 pm

For an example, you can take a look at a water molecule, which would have 180 degree bond angles if not for the lone pairs which cause the ultimate shape to be bent instead of linear, and the bond angles to be smaller.

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