Ligand substitution is a chemical reaction in which one or more ligands in a coordination complex are replaced by different ligands. This process is crucial in the field of coordination chemistry as it influences the reactivity, stability, and properties of metal complexes, impacting areas like catalysis and drug design.
Octahedral complexes are coordination compounds where a central metal atom is surrounded by six ligands at the vertices of an octahedron, forming a highly symmetrical structure. These complexes are crucial in inorganic chemistry due to their diverse electronic properties and roles in catalysis, magnetism, and bioinorganic systems.