Question

Why is ammonia molecule a good ligand?

Answer 1

Ammonia NH₃ is a good ligand because it has a lone pair of electrons on the nitrogen atom, which it can donate to a central metal ion to form a stable coordinate bond. Being a small, neutral molecule, it easily surrounds the metal ion and forms stable complexes. Its ability to form multiple bonds and moderate field strength also make it effective in influencing the geometry and properties of coordination compounds.