CN– is a strong field ligand. This is due to the fact that
It is a pseudohalide
It can accept electrons from metal species
It forms high spin complexes with metal species
It carries negative charge
The Correct Option is B
Solution and Explanation
CN– is a strong field ligand. This is due to the fact that: it is a good \(\pi\)-donor and causes greater splitting of d orbitals in coordination complexes.
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Concepts Used:
Coordination Compounds
A coordination compound holds a central metal atom or ion surrounded by various oppositely charged ions or neutral molecules. These molecules or ions are re-bonded to the metal atom or ion by a coordinate bond.
Coordination entity:
A coordination entity composes of a central metal atom or ion bonded to a fixed number of ions or molecules.
Ligands:
A molecule, ion, or group which is bonded to the metal atom or ion in a complex or coordination compound by a coordinate bond is commonly called a ligand. It may be either neutral, positively, or negatively charged.