Ligand of HN(CH2CH2NH2)2

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Sean Sugai 4E
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

Ligand of HN(CH2CH2NH2)2

Postby Sean Sugai 4E » Tue Nov 26, 2019 6:30 pm

How is HN(CH2CH2NH2)2 tridentate? Is there anyway to think about this without drawing the Lewis structure?

Izzie Capra 2E
Posts: 103
Joined: Sat Sep 07, 2019 12:19 am

Re: Ligand of HN(CH2CH2NH2)2

Postby Izzie Capra 2E » Tue Nov 26, 2019 6:50 pm

Yes, it is possible to do this without drawing the Lewis structure. Since you have NH outside the parenthesis, you know you already have one Nitrogen atom with a lone pair. And then, since you have 2 (CH2CH2NH2), you also now have two more Nitrogen atoms with lone pairs. You now have a total of 3 Nitrogens with lone pairs, so it is tridentate.

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