Chelates

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TYun_1C
Posts: 52
Joined: Wed Sep 11, 2019 12:16 am

Chelates

Postby TYun_1C » Sat Dec 07, 2019 7:44 pm

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
Posts: 142
Joined: Wed Nov 15, 2017 3:03 am

Re: Chelates

Postby Eugene Chung 3F » Sat Dec 07, 2019 7:47 pm

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
Posts: 105
Joined: Sat Aug 17, 2019 12:18 am

Re: Chelates

Postby Naren_Ramesh_4F » Sat Dec 07, 2019 9:36 pm

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

zoedfinch1K
Posts: 57
Joined: Thu Jul 25, 2019 12:16 am

Re: Chelates

Postby zoedfinch1K » Sat Dec 07, 2019 9:46 pm

Naren_Ramesh_4D wrote: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
Posts: 98
Joined: Fri Aug 30, 2019 12:15 am

Re: Chelates

Postby Alan Cornejo 1a » Sat Dec 07, 2019 9:55 pm

Eugene Chung 3F wrote: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
Posts: 90
Joined: Sat Sep 14, 2019 12:17 am

Re: Chelates

Postby Vuong_2F » Sat Dec 07, 2019 10:42 pm

zoedfinch1K wrote:
Naren_Ramesh_4D wrote: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).


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