[Ma4b2] Isomerism in coordinate complexes cofusion

In summary, there is a compound with the formula [M A4 B2] and according to the textbook and the web, there can only be 2 possible isomers of this compound. However, the speaker suggests a different arrangement of the ligands which could potentially create 2 new isomers, resulting in a total of 4 isomers. The other person then questions if the molecule formed after switching ligands is different from the original ones, but it is confirmed that they are the same. Therefore, the proposed arrangement is not possible.
  • #1
nishantve1
76
1
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 .
NYmKs.png

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
2ftu0.png
.
And them form these,
vTltM.png


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 ?
 
Last edited:
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  • #2
Are you sure the molecule you get after switching ligands is different from both original ones?
 
  • #3
Bummer! should've had checked once, yea they are the same.
 

Related to [Ma4b2] Isomerism in coordinate complexes cofusion

1. What is [Ma4b2] isomerism in coordinate complexes cofusion?

[Ma4b2] isomerism in coordinate complexes cofusion refers to a type of isomerism found in coordination complexes with a coordination number of 6. It occurs when there are four ligands (M) of the same type and two ligands (b) of a different type attached to the central metal atom (a).

2. How is [Ma4b2] isomerism different from other types of isomerism?

[Ma4b2] isomerism is different from other types of isomerism, such as geometric isomerism and optical isomerism, because it is based on the number and type of ligands attached to the central metal atom rather than the spatial arrangement or chirality of the ligands.

3. What factors contribute to the formation of [Ma4b2] isomers?

The formation of [Ma4b2] isomers is dependent on several factors, including the coordination number of the central metal atom, the size and charge of the ligands, and the electronic configuration of the metal atom. These factors can affect the stability and bonding of the isomers.

4. How is [Ma4b2] isomerism observed and studied?

[Ma4b2] isomerism can be observed through various methods such as spectroscopy, X-ray crystallography, and computational modeling. These techniques allow for the identification and characterization of the different isomers and their properties.

5. What are the practical applications of [Ma4b2] isomerism?

[Ma4b2] isomerism has practical applications in fields such as catalysis, materials science, and biomedical research. Understanding and manipulating the isomers can lead to the development of new and improved materials and compounds with specific properties and functions.

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