Molecular Shape and Polarity
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 184
- Joined: Wed Sep 18, 2019 12:18 am
Re: Molecular Shape and Polarity
I think it just affects the bond angles between the atoms but I could be wrong.
-
- Posts: 117
- Joined: Fri Aug 09, 2019 12:17 am
Re: Molecular Shape and Polarity
If you're talking about a molecule like CHCl3, it's polar. However, the polarity of it doesn't affect the fact that its tetrahedral and all bond angles are 109.5 degrees. The only time bond angles/shape is affected would be due to lone pairs.
-
- Posts: 103
- Joined: Wed Sep 18, 2019 12:20 am
Re: Molecular Shape and Polarity
the shape affects the polarity (due to the possibility of dipole moments cancelling), but as far as i know it doesn't work the other way around
-
- Posts: 105
- Joined: Sat Aug 17, 2019 12:16 am
Re: Molecular Shape and Polarity
if all the outer atoms are the same and symmetric, the dipole moments cancel each other out and become nonpolar. However, a molecule with an unsymmetric shape will be (at least slightly) polar. Additionally lone pair or pairs of electrons on the central atom guarantee a nonuniform distribution of electrons. In terms of polarity affecting shape, it is mainly due to areas of electron density that determine a shape.
-
- Posts: 25
- Joined: Mon Jan 07, 2019 8:05 am
Re: Molecular Shape and Polarity
Polarity does affect the shape of the lewis structure. Lone pairs decreases the bond angle due to electron-electron repulsion. As a result, the structure of the molecule will change.
Return to “Determining Molecular Shape (VSEPR)”
Who is online
Users browsing this forum: No registered users and 11 guests