Question
What are metal chelates? Give the names and the structures of two important chelating agents
Answer :
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The chelate effect is the enhanced affinity of chelating ligands for a metal ion compared to the affinity of a collection of similar nonchelating (monodentate) ligands for the same metal.
Consider the two equilibria, in aqueous solution, between the copper(II) ion, Cu2+ and ethylenediamine (en) on the one hand and methylamine, MeNH2 on the other.
Cu2+ + en ⇌ [Cu(en)]2+
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