February 28, 2021, 02:14:54 PM
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Topic: Basicity of Ligands  (Read 263 times)

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Offline JustSpot

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Basicity of Ligands
« on: October 26, 2020, 10:20:30 PM »
When is the basicity of a molecule not a good indicator of whether it might be a good ligand?

Thanks in advance!

Offline Babcock_Hall

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Re: Basicity of Ligands
« Reply #1 on: October 27, 2020, 10:15:35 AM »
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Offline JustSpot

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Re: Basicity of Ligands
« Reply #2 on: October 28, 2020, 02:06:16 AM »
Ah sorry, I didn't see that. My thinking is that the basicity of the a molecule doesn't tell you about the quality of the ligand when it is a chelating ligand since this would give extra stability to the complex that may not be accounted for in the pH of the ligand.

Thanks.

Offline Babcock_Hall

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Re: Basicity of Ligands
« Reply #3 on: October 28, 2020, 08:50:54 AM »
I am not an inorganic or organometallic chemist, but there is one kind of stabilization involving orbitals that I can think of, that a metal might have that a proton does not have.  Maybe that is what you mean.

Offline Corribus

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Re: Basicity of Ligands
« Reply #4 on: October 28, 2020, 10:24:28 AM »
Were it me answering the question, my mind would be going in the direction of steric effects.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

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