Dipole-Dipole

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philipraj_1F
Posts: 52
Joined: Fri Aug 30, 2019 12:16 am

Dipole-Dipole

Postby philipraj_1F » Tue Nov 19, 2019 8:14 pm

If two dipole moments cancel out in a molecule due to structure does it still have dipole-dipole bonding? Also, if they cancel would the molecule still be considered polar?

Kavya Immadisetty 2B
Posts: 106
Joined: Sat Aug 24, 2019 12:17 am
Been upvoted: 1 time

Re: Dipole-Dipole

Postby Kavya Immadisetty 2B » Tue Nov 19, 2019 8:22 pm

If the two dipole moments cancel out (ex. CO2), the molecule is considered non-polar and doesn't have dipole-dipole interactions.

Areena H 2K
Posts: 81
Joined: Wed Dec 05, 2018 12:18 am

Re: Dipole-Dipole

Postby Areena H 2K » Tue Nov 19, 2019 8:29 pm

The molecule overall would be considered nonpolar so it would have no dipole-moments.
Last edited by Areena H 2K on Tue Nov 19, 2019 8:50 pm, edited 2 times in total.

anjali41
Posts: 109
Joined: Fri Aug 09, 2019 12:15 am

Re: Dipole-Dipole

Postby anjali41 » Tue Nov 19, 2019 8:33 pm

In the case of CO2 for example, the dipoles created by the Carbon and Oxygen are both pointing towards the central Carbon, they would cancel each other out and there would be no dipole moment. CO2 is nonpolar in this example.

Tahlia Mullins
Posts: 105
Joined: Thu Jul 25, 2019 12:15 am

Re: Dipole-Dipole

Postby Tahlia Mullins » Tue Nov 19, 2019 9:28 pm

If the dipole moments cancel each other out, the molecule is no longer polar, it is non-polar, and there is no dipole moment. I like to consider this in terms of electronegativity and the relative charges on molecules, instead of just memorizing facts.

Jamie Hwang 2F
Posts: 104
Joined: Thu Jul 25, 2019 12:16 am

Re: Dipole-Dipole

Postby Jamie Hwang 2F » Wed Nov 20, 2019 1:16 am

A molecule is polar if it has dipole moments so if the dipole moments cancel out then the molecule is nonpolar.


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