Ion-Dipole

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JOtomo1F
Posts: 66
Joined: Sat Aug 24, 2019 12:16 am
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Ion-Dipole

Postby JOtomo1F » Tue Nov 19, 2019 12:01 am

Could someone please explain to me what we are supposed to know about ion-dipole interactions? I am a also a bit confused on why the syllabus does not tell us to read section 3F.2 if this material is going to be on Test 2.

AnvitaaAnandkumar_1B
Posts: 56
Joined: Fri Aug 02, 2019 12:15 am

Re: Ion-Dipole

Postby AnvitaaAnandkumar_1B » Tue Nov 19, 2019 7:16 am

An ion-dipole interaction is the result of an electrostatic interaction between a charged ion and a molecule that has a dipole. It is an attractive force that is commonly found in solutions, especially ionic compounds dissolved in polar liquids.

Kishan Shah 2G
Posts: 132
Joined: Thu Jul 11, 2019 12:15 am

Re: Ion-Dipole

Postby Kishan Shah 2G » Tue Nov 19, 2019 8:35 am

The easiest way to explain ion-dipole interaction, is the salt in water example. Lets take NaCl for example. The sodium has a positive charge and the chlorine has a negative charge. So the water molecules will surround the the NaCl ion in such an orientation that the positive hydrogen atom in water is closest to the negative chlorine and the negative oxygen atom is closest to the positive sodium atom. This results in hydration of the ion and its due to ion-dipole interactions.

This is a good link to visualize what I am saying: https://dr282zn36sxxg.cloudfront.net/da ... ARD_TINY.1


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