AbstractFive polymer‐type new compounds‐(η3‐cyclopentadienyl)palladiumchloride (6), (η3‐indenyl) palladiumchloride (7), (η3‐cycloheptatrienyl)palladiumchloride (8), (η3‐phenalenyl)palladiumchloride (9) and (1,2,3‐η3‐4,5,6,7‐η4‐cyclopheptatrienyl)(palladium‐chloride)(tricarboryl Iron) (10) have been prepared from the reaction of Na2PdCl4with 1‐trimethylsilylcyclopentadiene (1), 1‐trimethylsilylindene (2), 1‐trimethylsilyl cycloheptatriene (3), 1‐trimethylsilylphenalene (4) and 1‐trimethylsilylcycloheptatriene tricarbonyl Iron (5) respectively. All the complexes(6)‐(10) are obtained in excellent yield using the improved preparation route. Furthe