Chelates

[TYun_1C]

How do you determine if a coordination compound is a chelate when you're only given the chemical formula, like in mini marshmallow #2?

[Eugene Chung 3F]

You would look for ligands that act as polydentate. For example, if the coordination compound has ethylenediamine or en, you would know that it is chelating since en is a bidentate.

[Naren_Ramesh_4F]

I think the best way to approach this if you are having difficulty is to memorize the common polydentates like oxalate and ethylenediamine.

[zoedfinch1K]

I think the best way to approach this if you are having difficulty is to memorize the common polydentates like oxalate and ethylenediamine.

What are the common polydentates that we need to know?

[Alan Cornejo 1a]

You would look for ligands that act as polydentate. For example, if the coordination compound has ethylenediamine or en, you would know that it is chelating since en is a bidentate.

This is correct, as long as you identify the ligands that have two or more atoms capable of binding to a central metal atom or ion, you can identify whether or not is a chelate. All polydentate ligands are chelating agents

[Vuong_2F]

I think the best way to approach this if you are having difficulty is to memorize the common polydentates like oxalate and ethylenediamine.

What are the common polydentates that we need to know?

The ones listed in the textbook are ethylenediamine (en), diethylenetriamine (dien), oxalato (ox), and ethylenediaminetetraacetato (edta).