Which of the following do not show geometrical isomerism? (Assume all ligands are unidentate)
Show Hint
Geometrical isomerism is most commonly observed in square planar and octahedral complexes, particularly when there are different types of ligands that can be arranged in different positions.
Step 1: Understanding Geometrical Isomerism
Geometrical isomerism occurs when there are different spatial arrangements of ligands around a central metal ion. This is usually observed in square planar and octahedral complexes.
Step 2: Analyzing the Options
In option (a) [MXL\(_3\)], a square planar complex with three identical ligands and one different ligand can show cis-trans isomerism, which is geometrical isomerism.
In option (b) [MX\(_2\)L\(_2\)], a square planar complex with two identical ligands and two other identical ligands can show