Crystal Field Theory Flashcard

Front

What is the hybridisation of the complex [Co(H₂O)₆]²⁺?

Back

Sp³d²

Front

What factors influence the magnitude of Crystal Field splitting of d orbitals?

Back

Orientation of the d orbitals around the central metal ion, Number of interacting ligands, Nature of the ligand, Nature of the metal, All of the above.

Front

What is Δₜ in relation to Δₒ?

Back

Δₜ = 4/9 Δₒ

Front

How many sources of paramagnetism are there in transition metal complexes?

Back

Two

Front

What does CFT view the interaction between metal ions and ligands in terms of?

Back

Electrostatic attraction and repulsion.

Front

Define Crystal Field Theory (CFT).

Back

A model that describes the electronic structure of transition metal complexes by considering the electrostatic interactions between the metal cation and the surrounding ligands.

Front

What is the significance of ligand field strength in CFT?

Back

It determines the extent of splitting of d orbitals and influences the color and magnetic properties of the complex.

Front

What are strong field ligands?

Back

Ligands that cause a large splitting of d orbitals, leading to low-spin complexes.

Front

What are weak field ligands?

Back

Ligands that cause a small splitting of d orbitals, leading to high-spin complexes.

Front

What is the role of the central metal ion in CFT?

Back

It acts as a positive charge center that interacts with the negatively charged ligands.