H-Bond acceptor

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Cecilia Cisneros 1F
Posts: 133
Joined: Wed Sep 30, 2020 9:45 pm

H-Bond acceptor

Postby Cecilia Cisneros 1F » Sat Nov 14, 2020 6:46 pm

Does an H-bond acceptor (O,N, or F) need to be attached to a hydrogen atom to participate in h-bonds?

Hannah Biju 1E
Posts: 94
Joined: Wed Sep 30, 2020 9:55 pm

Re: H-Bond acceptor

Postby Hannah Biju 1E » Sat Nov 14, 2020 6:50 pm

The hydrogen needs to be connected to an N,O, or F to have a partial positive but the other molecule's only restriction is that it must have a partial negative. For example, a hydrogen bonded to N,O, or F can form a hydrogen bond with an oxygen bonded to a carbon because the oxygen is more electronegative than the carbon giving it a partial negative charge

Jared Limqueco 3E
Posts: 90
Joined: Wed Sep 30, 2020 9:37 pm

Re: H-Bond acceptor

Postby Jared Limqueco 3E » Sat Nov 14, 2020 7:31 pm

Just like above, a partial charge is needed, and a there has to be an available lone pair as well

AndrewNguyen_2H
Posts: 90
Joined: Wed Sep 30, 2020 9:59 pm

Re: H-Bond acceptor

Postby AndrewNguyen_2H » Sat Nov 14, 2020 7:34 pm

No, you need one hydrogen bonded to F, O, or N but the other F, O,N that bonds to that hydrogen doesn't need to be connected to hydrogen.

Jason_John_2F
Posts: 91
Joined: Wed Sep 30, 2020 9:54 pm

Re: H-Bond acceptor

Postby Jason_John_2F » Sat Nov 14, 2020 8:40 pm

the hydrogen bond acceptor does not need to be attached to a hydrogen

DavidTabib 3H
Posts: 91
Joined: Wed Sep 30, 2020 10:06 pm

Re: H-Bond acceptor

Postby DavidTabib 3H » Sun Nov 15, 2020 3:19 pm

Only one of the H needs to be attached to a NOF element.

David Liu 1E
Posts: 90
Joined: Wed Sep 30, 2020 10:07 pm

Re: H-Bond acceptor

Postby David Liu 1E » Sun Nov 15, 2020 8:20 pm

it doesn't need to be attached to a hydrogen, but you need ot make sure there's a partial charge on the molecule that it's attached to, which is why in the sapling homework it generally can't attach to a carbon that has 4 bonds (because it becomes nonpolar)

Alejandro Gonzalez 2G
Posts: 77
Joined: Wed Sep 30, 2020 10:04 pm

Re: H-Bond acceptor

Postby Alejandro Gonzalez 2G » Sun Nov 15, 2020 9:23 pm

I think the hydrogen bond acceptor does not need to be attached to another hydrogen itself, but just needs to have a partial negative charge.

Sophia Kalanski 1A
Posts: 102
Joined: Wed Sep 30, 2020 10:01 pm
Been upvoted: 1 time

Re: H-Bond acceptor

Postby Sophia Kalanski 1A » Sun Nov 15, 2020 10:23 pm

No, the hydrogen needs to be attached to either F,N,O but the other atom just has to be electronegative.

Callan Howard
Posts: 57
Joined: Wed Sep 30, 2020 10:00 pm

Re: H-Bond acceptor

Postby Callan Howard » Sun Nov 15, 2020 10:24 pm

No there just has to be a hydrogen attached to an F, O or N.


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