Hydrogen Bonds

Moderators: Chem_Mod, Chem_Admin

Shannon Asay 1C
Posts: 102
Joined: Fri Aug 09, 2019 12:16 am

Hydrogen Bonds

Postby Shannon Asay 1C » Fri Nov 08, 2019 5:16 pm

Why are hydrogen bonds stronger than normal dipole-dipole interactions?

Chem_Mod
Posts: 18910
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 737 times

Re: Hydrogen Bonds

Postby Chem_Mod » Fri Nov 08, 2019 6:01 pm

Because they have some covalent character.

TYun_1C
Posts: 52
Joined: Wed Sep 11, 2019 12:16 am

Re: Hydrogen Bonds

Postby TYun_1C » Fri Nov 08, 2019 6:06 pm

In hydrogen bonding there is a hydrogen bonded to either N,O,F. These are some of the most electronegative elements in the periodic table and therefore have great polarizing powers, making their bond with hydrogen very strong.

Sanjana K - 2F
Posts: 102
Joined: Sat Sep 07, 2019 12:17 am
Been upvoted: 1 time

Re: Hydrogen Bonds

Postby Sanjana K - 2F » Fri Nov 08, 2019 6:24 pm

For hydrogen bonds and dipole-dipole bonds, you're looking at the strength of the bond between partially + and partially - atoms. Since N,O, and F usually bond with H in a hydrogen bond and they tend to be more electronegative, they'll result in a higher polarity against the positive hydrogen so the bond will be stronger as well.

Anvi Brahmbhatt 4A
Posts: 51
Joined: Wed Sep 18, 2019 12:21 am

Re: Hydrogen Bonds

Postby Anvi Brahmbhatt 4A » Sat Nov 09, 2019 2:17 am

Hydrogen is bonded to oxygen, nitrogen, or fluorine in hydrogen bonding. These bonds are strong because they are the most electronegative elements in the periodic table.

Daria Azizad 1K
Posts: 116
Joined: Thu Jul 25, 2019 12:15 am

Re: Hydrogen Bonds

Postby Daria Azizad 1K » Sat Nov 09, 2019 9:55 am

Since it is bonded to N, O, or F, which are highly electronegative, H’s one electron will be pulled away from it. So that means H is basically just a proton and therefore negatively charged atoms will be highly attracted to it.

305416361
Posts: 50
Joined: Fri Aug 09, 2019 12:17 am

Re: Hydrogen Bonds

Postby 305416361 » Sun Nov 10, 2019 12:01 am

Hydrogen bonds are the strongest types of bonds because they occur between Hydrogen and the most electronegative elements


Return to “Dipole Moments”

Who is online

Users browsing this forum: No registered users and 2 guests