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Identifying Polydentates

Posted: Sun Dec 02, 2018 5:52 pm
by Shirley Liu 2I
How do we know if a complex's ligands can be polydentates from just looking at the formula? Or how do we know at all? There aren't really any examples in the textbook or notes, so I'm not sure how to find out

Re: Identifying Polydentates

Posted: Sun Dec 02, 2018 5:55 pm
by Desiree1G
I'm not sure if this is 100% for certain but I think there is a few we just sort of have to remember are polydentate, for instance, en, ethylenediamine or dien, diethylenetriamine. But I doubt he will give us some that we have not reviewed

Re: Identifying Polydentates

Posted: Sun Dec 02, 2018 5:57 pm
by Jewelyana3A
I also agree that he will most likely only give us ones that we already recognize. But it is best to try to memorize as much as you can so that it is quickly familiar on the exam.

Re: Identifying Polydentates

Posted: Mon Dec 03, 2018 12:19 am
by Luc Lorain 1L
Polydentate ligands can be identified be pretty highly inferred by the availability of sites that can form coordinate covalent bonds and their proximity to each other. Regions with many electron pairs (such as amine groups) within an atom are very good at becoming ligands, so molecules with many of these groups close together can easily form polydentate ligands.

Re: Identifying Polydentates

Posted: Sun Dec 09, 2018 3:48 pm
by AngelaZ 1J
You can look at the structure or you can memorize which ligands are polydentate (there's a list of ligands we need to know on Lavelle's website).