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Kaleb Tesfaye 1I
Posts: 29
Joined: Fri Apr 06, 2018 11:05 am
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Postby Kaleb Tesfaye 1I » Sat Jun 02, 2018 8:53 am

I am having difficulty understanding what a Chelate is? What determines if a molecule will form a ring of atoms or not?

Johanna Caprietta 1E
Posts: 30
Joined: Fri Apr 06, 2018 11:02 am

Re: Chelate

Postby Johanna Caprietta 1E » Sat Jun 02, 2018 1:17 pm

Chelate contains a ligand bonded to a central metal atom at two or more points, usually forming a ring. I was also told that if a coordination compound contains at least one non-monodenate ligand, it would be considered a chelate. I hope this make sense.

Emily 1E
Posts: 27
Joined: Fri Apr 06, 2018 11:03 am

Re: Chelate

Postby Emily 1E » Sun Jun 03, 2018 10:46 am

It's a central metal atom attached to ligands in a ring/cyclical structure. The ring structure can only be created with polydentate ligands, that can form coordinate bonds with more than one other atom/molecule. In most cases, the metal atom is bonded to a ligand, which is bonded to another ligand which bonds to the same central metal atom. The larger the number of rings it creates, the more stable the complex is. Looking at images of them might make it easier to understand.

Jada Larson 1F
Posts: 31
Joined: Fri Apr 06, 2018 11:03 am

Re: Chelate

Postby Jada Larson 1F » Sun Jun 03, 2018 10:04 pm

A chelate is a ligand that forms a ring with the central metal. It bonds cations very tightly, and an example of one is EDTA.

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