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Why does EDTA not complex with single charge cations?
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Topic: Why does EDTA not complex with single charge cations? (Read 3110 times)
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Strike
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Why does EDTA not complex with single charge cations?
«
on:
March 05, 2012, 10:43:34 PM »
EDTA can have up to 6 election pair donators and only complexes in a 1:1 ratio regardless of the charge of the cation.
It can complex with 2+ cations very easily, but why not 1+?
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Pradeep
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Re: Why does EDTA not complex with single charge cations?
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Reply #1 on:
March 08, 2012, 06:34:22 AM »
I heard that, because +1 cations cant accommodate the electrons pairs received from the ligand without repulsion. But I am not very sure about the answer.
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Strike
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Re: Why does EDTA not complex with single charge cations?
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Reply #2 on:
March 19, 2012, 05:09:45 PM »
Ah that makes sense.
I've also been told that EDTA binds to singly-charged cations weakly because they lack the orbitals into which electrons can be donated.
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Why does EDTA not complex with single charge cations?