Dipole moments

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Jane Burgan 1C
Posts: 73
Joined: Fri Sep 28, 2018 12:15 am

Dipole moments

Postby Jane Burgan 1C » Sun Nov 18, 2018 9:02 am

When you're given isomers of a compound, how do you determine which one has the largest dipole moment?

904936893
Posts: 62
Joined: Fri Sep 28, 2018 12:29 am

Re: Dipole moments

Postby 904936893 » Sun Nov 18, 2018 9:46 am

I think you would have to draw out the Lewis Structures and then add in the arrows for the dipole moments, making the arrows larger or smaller depending on the difference in electronegativity between the atoms being bonded. From that image you would look at the directions the arrows are pointing, and see if any of the isomers have a stronger dipole moment based on that. For example, the arrows aren't cancelling each other out, or the two most electronegative atoms are bonded to the same central atom, would create stronger dipole moments.


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