Polydentates and Chelates

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Labiba Sardar 2A
Posts: 86
Joined: Sat Jul 20, 2019 12:15 am

Polydentates and Chelates

Postby Labiba Sardar 2A » Sat Dec 07, 2019 8:55 am

Are all polydentates considered to be chelating ligands?

Annie Ye
Posts: 106
Joined: Wed Sep 18, 2019 12:22 am

Re: Polydentates and Chelates

Postby Annie Ye » Sat Dec 07, 2019 8:59 am

Yes polydentates are considered to be chelating ligands. An example would be the porphyrin ligand.

Maya Gollamudi 1G
Posts: 73
Joined: Thu Jul 25, 2019 12:15 am

Re: Polydentates and Chelates

Postby Maya Gollamudi 1G » Sat Dec 07, 2019 12:25 pm

Yes, all polydentate ligands bind to the central atom at multiple sites and can form a loop/ring which includes the central atom.

Maeve Miller 1A
Posts: 51
Joined: Fri Aug 09, 2019 12:16 am

Re: Polydentates and Chelates

Postby Maeve Miller 1A » Sat Dec 07, 2019 12:26 pm

Yep, in order to be a chelate, a ligand must be polydenate so they are more or less interchangeable terms.

Charysa Santos 4G
Posts: 91
Joined: Wed Sep 18, 2019 12:21 am

Re: Polydentates and Chelates

Postby Charysa Santos 4G » Sat Dec 07, 2019 12:30 pm

Yes, because the polydentates have multiple binding sites, they are able to form a "claw" or loop around the metal cation.


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