Chelating Ligands vs Polydentate ligands

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Megan Singer 3D
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Chelating Ligands vs Polydentate ligands

Postby Megan Singer 3D » Fri Dec 11, 2020 3:45 pm

What's the difference between chelating ligands and polydentate ligands? Are these just two words for the same thing?

Marylyn Makar 1B
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Re: Chelating Ligands vs Polydentate ligands

Postby Marylyn Makar 1B » Fri Dec 11, 2020 3:50 pm

Hi! Yes chelating ligands and polydentate ligands are the same thing :)

Sandy Lin 1L
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Re: Chelating Ligands vs Polydentate ligands

Postby Sandy Lin 1L » Fri Dec 11, 2020 4:37 pm

Ligands can be classified by how many times they bond with the transition metal. If it only forms one bond then it is monodentate. If it forms more than one bond, it is polydentate. Since it bonds more than once, it will form a chelate/ring of atoms.

Sophia Spungin 2E
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Re: Chelating Ligands vs Polydentate ligands

Postby Sophia Spungin 2E » Fri Dec 11, 2020 4:53 pm

A polydentate ligand is chelating ligand. I believe that chelating just refers to the structure that is able to form in the presence of a polydentate ligand.

Rose_Malki_3G
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Re: Chelating Ligands vs Polydentate ligands

Postby Rose_Malki_3G » Fri Dec 11, 2020 6:07 pm

Polydentate ligands will form chelate/ring attached to the transition metal.

Hailey Qasawadish 2J
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Re: Chelating Ligands vs Polydentate ligands

Postby Hailey Qasawadish 2J » Fri Dec 11, 2020 9:25 pm

They aren't necessarily the exact same, but a polydentate ligand forms a ring, or rather, chelates, meaning that polydentate ligands are cheating ligands.


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