Dipole-Dipole

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Reese - Dis 1G
Posts: 31
Joined: Fri Sep 28, 2018 12:15 am

Dipole-Dipole

Postby Reese - Dis 1G » Fri Nov 09, 2018 11:41 am

What is the difference between dipole-dipole and induced dipole-induced dipole?

Parth Mungra
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: Dipole-Dipole

Postby Parth Mungra » Fri Nov 09, 2018 11:56 am

Dipole-Dipole interactions are different than induced dipole-induced dipole interactions in that Dipole-Dipole interactions involves one atom, that is bonded to another atom, having a high electronegativity, thus creating a polar molecule. The atom that is pulling on the electron more has a slight negative charge, while the atom with the lower electronegativity has a slight positive charge, creating an uneven electron density. These charges interact with other molecules that are polar, and this is the attraction in Dipole-Dipole interactions.
Induced dipole-induced dipole interactions do not include this electronegativity difference, and there are random shifts of electron density in a molecule. This occurs very quickly, and does not last very long, and the interaction is weaker than the dipole dipole interaction. When one molecule experiences this shift, it has uneven electron density, and this causes nearby molecules to experience this shift as well, creating a weak interaction.

Hope this helps.


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