Coordination complex

A coordination complex is a chemical structure where a central metal atom or ion is bonded to surrounding molecules or ions called ligands. These ligands donate electron pairs to the metal, forming coordinate covalent bonds. The arrangement creates a stable, often colorful and geometric compound. Coordination complexes are common in natural processes like blood oxygen transport, and in industrial applications such as catalysts and dyes. Their properties depend on the metal and ligands involved, making them important in chemistry for understanding reactions and designing new materials.