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[Ma4b2] Isomerism in coordinate complexes.. cofusion

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Jan1-13, 03:50 AM
P: 76
Consider a complex with Central Metal atom M
A and B are monodentate ligands .

Consider a compound with formula as
[M A4 B2] . Textbook and the web says there can be only 2 possible isomers of this compound .

What I say is, why can't I in the first image put A on the top and bring B towards the bottom something like this
And them form these,

That will give a total of 2 new ones I formed and the two old ones, 4 isomers .
Why is this not possible, I mean why can't a occupy the two places ?
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Jan1-13, 04:42 AM
Borek's Avatar
P: 23,599
Are you sure the molecule you get after switching ligands is different from both original ones?
Jan1-13, 07:17 AM
P: 76
Bummer! should've had checked once, yea they are the same.

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