Homework Help

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AChoudhry_1L
Posts: 55
Joined: Sat Sep 07, 2019 12:17 am

Homework Help

Postby AChoudhry_1L » Fri Dec 06, 2019 9:59 pm

Which of the following ligands can be polydentate? If the ligand can be polydentate, give the maximum number of places on the ligand that can bind simultaneously to a single metal center: (a) HN(CH2CH2NH2)2; (b) (CO3)2-; (c) H2O; (d) oxalate

Can someone explain the process of doing this problem?

Sanjana Munagala_1j
Posts: 87
Joined: Sat Aug 24, 2019 12:17 am
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Re: Homework Help

Postby Sanjana Munagala_1j » Fri Dec 06, 2019 11:40 pm

There should be common examples of polydentate ligands that you should be familiar with that can help you with this problem. For example, knowing edta, en, dien, oxalate are the most common ones. If you don't have these molecules, for example in water and carbonate ion, there are two things I look for after drawing the lewis structures. One is either a nitrogen with a lone pair and the other is an oxygen with a negative charge. These usually form ligands and if a molecule has more than one, then it can be polydentate.

Hope that helps!


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