(EDTA) and (en) Q17.37

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MCracchiolo 1C
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(EDTA) and (en) Q17.37

Postby MCracchiolo 1C » Tue Nov 28, 2017 5:28 pm

On Question 17.37, parts (c) and (d) contain the symbols (edta) and (en) within the chemical formula. What do these mean and how do I know that edta is hexadentate and en is bidentate?

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Re: (EDTA) and (en) Q17.37

Postby Cooper1C » Tue Nov 28, 2017 6:51 pm

If you look at table 4, the full name of the ligand is given and the abbreviation is in parentheses:

ethylenediamine (en)
enthylenediaminetetraacetato (edta)

After the parentheses is a symbol that corresponds to one of the footnotes telling you whether the ligand is bidentrate, tridentate, or hexadentate. You can also look at the lewis structure for edta (the molecules in red can bond to the metal atom).

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