Zeise Salt || Metal - Olefin Complex || Organometallic compound

Zeise's salt, potassium trichloro(ethylene)platinate(II), is the chemical compound with the formula K[PtCl3(C2H4)]·H2O. The anion of this air-stable, yellow, coordination complex contains an η2-ethylene ligand. The anion features a platinum atom with a square planar geometry.