Polydentate

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William Lan 2l
Posts: 73
Joined: Fri Sep 29, 2017 7:07 am

Polydentate

Postby William Lan 2l » Tue Nov 28, 2017 9:38 pm

How do you tell if something is polydentate vs. monodentate?

sandros
Posts: 19
Joined: Fri Sep 29, 2017 7:07 am

Re: Polydentate

Postby sandros » Tue Nov 28, 2017 11:56 pm

I think we have to memorize which ligands are polydentates and the # of bonds they can make with the TM. Take a look at table 17.4 there are a few we have to memorize I guess.

Rithik Kumar 3E
Posts: 25
Joined: Fri Sep 29, 2017 7:06 am

Re: Polydentate

Postby Rithik Kumar 3E » Wed Nov 29, 2017 11:32 pm

You can also draw out the Lewis structure of the molecule in question. After creating the proper structure, you should identify those atoms with a lone pair. These atoms will be able to form a bond and thereby can be monodentate (if only one of these atoms are present) or polydentate (if multiple of these atoms are present). I think we also have to keep in mind that there should be a proper amount of distance between these atoms so as to allow them to bind. In addition, atoms with a lone pair and a formal charge of (-1), as is for Nitrogen in many cases, indicate possible areas for binding.

Leah Thomas 2E
Posts: 51
Joined: Fri Sep 29, 2017 7:06 am

Re: Polydentate

Postby Leah Thomas 2E » Thu Nov 30, 2017 11:22 am

Also I think for a molecule to be polydentates can also be chelates that are a ring structure created between atoms that must include the central atoms so be careful of those type of problems as well.


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