Chapter 29: Problem 10

Comment upon the statement: \(\pi\) -acceptor ligands increase the stability of the octahedral complexes.

Short Answer

Expert verified

The statement is correct. \(\pi\) -acceptor ligands increase the stability of octahedral complexes by forming stronger bonds with the central atom and accepting electron density into their vacant \(\pi\) * orbitals, thereby reducing the overall energy of the system.

Step by step solution

Understanding Ligands and Octahedral Complexes

Octahedral complexes refer to a central metal atom or ion surrounded by six ligands positioned in the vertices of an octahedron. A ligand can be an ion or molecule that binds to the central atom to form these complexes. \(\pi\) -acceptor ligands are a type of ligand known as 'Pi acceptor ligands'. These ligands possess empty pi* orbitals or other low energy acceptor orbitals. They accept electron density from the metal center in the complex in their vacant orbitals during the formation of \(\pi\) -bonds.

Effect of \(\pi\) -acceptor ligands on Octahedral Complexes

\(\pi\) -acceptor ligands stabilize octahedral complexes by forming stronger bonds with the central atom. When these ligands bond with the metal center, they accept electron density from the metal into their vacant \(\pi\) * orbitals. This back-bonding reduces the energy of the system, and thus, stabilizes the complex.

Conclusion

Therefore, the statement is correct. \(\pi\) -acceptor ligands do increase the stability of the octahedral complexes. These ligands have vacant pi* orbitals and can accept electron density from the metal center, which forms a \(\pi\) -bond and stabilizes the complex.

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Comment upon the statement: \(\pi\) -acceptor ligands increase the stability of the octahedral complexes.

Short Answer

Step by step solution

Understanding Ligands and Octahedral Complexes

Effect of \(\pi\) -acceptor ligands on Octahedral Complexes

Conclusion

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