4.5 Bond Angle

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

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Marcela Udave 1F
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Joined: Fri Sep 28, 2018 12:16 am

4.5 Bond Angle

Postby Marcela Udave 1F » Sun Nov 25, 2018 10:46 pm

b) What is the expected OClO bond angle?
Do you go from oxygen to oxygen and say it's less than 120 degrees?

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Joined: Fri Sep 28, 2018 12:26 am

Re: 4.5 Bond Angle

Postby mahika_nayak_3L » Sun Nov 25, 2018 10:51 pm

The bond angle is going to be slightly less than 109 because of the lone pair repulsion. Because there are 4 regions of electron density, the electron geometry would be tetrahedral and 109.5 bond angles, but for the molecular geometry you have to take the lone pairs into account.

Anna O 2C
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Joined: Fri Sep 28, 2018 12:19 am

Re: 4.5 Bond Angle

Postby Anna O 2C » Sun Nov 25, 2018 11:41 pm

Adding on to the reply above me, the lone pairs distort the attached atoms more than normal bonding pairs do because when they aren't engaged in a bond, electrons move more freely and this causes them to be more repulsive. Because of this, the lone pairs take up more room than atoms do and thus push the bonded atoms away and towards each other, resulting in their bond angles shrinking. Hope this helped!

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