Chelate vs Polydentate

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JChen_2I
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Chelate vs Polydentate

Postby JChen_2I » Fri Dec 06, 2019 11:40 pm

How do you define chelate and polydentate and how are they different?

Sanjana Munagala_1j
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Re: Chelate vs Polydentate

Postby Sanjana Munagala_1j » Fri Dec 06, 2019 11:45 pm

Polydentate is when a single ligand has multiple sites where it can bind to a metal cation. Chelate refers to the whole complex which contains a ligand that forms a ring of atoms that include the central metal atom. When talking about the chelating ligand, it essentially is a polydentate ligand that forms a ring with the metal cation.

Hope that helps!

Sarah Zhari 1D
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Re: Chelate vs Polydentate

Postby Sarah Zhari 1D » Fri Dec 06, 2019 11:46 pm

Chelates form a ring around the central atom, whereas polydentate ligands allow more than one of its binding sites to be occupied. I think that a polydentate ligand can be a chelate, but they are not necessarily a chelate.

AngieGarcia_4F
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Re: Chelate vs Polydentate

Postby AngieGarcia_4F » Sat Dec 07, 2019 12:06 am

Sarah Zhari 1C wrote:Chelates form a ring around the central atom, whereas polydentate ligands allow more than one of its binding sites to be occupied. I think that a polydentate ligand can be a chelate, but they are not necessarily a chelate.

In the review session i'm pretty sure Matthew said all polydentate ligands chelate.

JChen_2I
Posts: 107
Joined: Fri Aug 09, 2019 12:17 am

Re: Chelate vs Polydentate

Postby JChen_2I » Sat Dec 07, 2019 12:12 am

AngieGarcia_4F wrote:
Sarah Zhari 1C wrote:Chelates form a ring around the central atom, whereas polydentate ligands allow more than one of its binding sites to be occupied. I think that a polydentate ligand can be a chelate, but they are not necessarily a chelate.

In the review session i'm pretty sure Matthew said all polydentate ligands chelate.

But all chelates have to be polydentate too right?

AngieGarcia_4F
Posts: 120
Joined: Thu Jul 25, 2019 12:17 am

Re: Chelate vs Polydentate

Postby AngieGarcia_4F » Sat Dec 07, 2019 12:13 am

JChen_3C wrote:
AngieGarcia_4F wrote:
Sarah Zhari 1C wrote:Chelates form a ring around the central atom, whereas polydentate ligands allow more than one of its binding sites to be occupied. I think that a polydentate ligand can be a chelate, but they are not necessarily a chelate.

In the review session i'm pretty sure Matthew said all polydentate ligands chelate.

But all chelates have to be polydentate too right?

Yeah I believe so

Sarah Zhari 1D
Posts: 103
Joined: Sat Sep 14, 2019 12:16 am

Re: Chelate vs Polydentate

Postby Sarah Zhari 1D » Sat Dec 07, 2019 1:37 am

AngieGarcia_4F wrote:
Sarah Zhari 1C wrote:Chelates form a ring around the central atom, whereas polydentate ligands allow more than one of its binding sites to be occupied. I think that a polydentate ligand can be a chelate, but they are not necessarily a chelate.

In the review session i'm pretty sure Matthew said all polydentate ligands chelate.


I must have missed that. Thanks!


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