H Bonds stronger than dipole-dipole

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I am Sodium Funny
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Joined: Fri Sep 28, 2018 12:26 am

H Bonds stronger than dipole-dipole

Postby I am Sodium Funny » Sat Dec 08, 2018 10:26 pm

Why are hydrogen bonds stronger than traditional dipole to dipole interactions?

Kathryn Wilhem 1I
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: H Bonds stronger than dipole-dipole

Postby Kathryn Wilhem 1I » Sat Dec 08, 2018 10:32 pm

A hydrogen bond is about 10% of the typical covalent bond strength, making it a much stronger attractive force than dipole-dipole and london dispersion.

Jessica Castro 2H
Posts: 60
Joined: Fri Sep 28, 2018 12:29 am

Re: H Bonds stronger than dipole-dipole

Postby Jessica Castro 2H » Sat Dec 08, 2018 10:53 pm

Dipole-dipole interactions are electrostatic interactions between any partially negative atom and any partially positive atom. However, a hydrogen bond is specifically between a partially positive hydrogen atom and a partially negative atom (N, O, or F). Since N, O, and F, are much more electronegative than hydrogen, the dipole is stronger, therefore the polarity is stronger. When the polarity of a bond is strong, the bond itself is also strong.


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