Wikipedia
Dichloro(cycloocta-1,5-diene)platinum(II)
Dichloro(1,5-cyclooctadiene)platinum(II) (Pt(cod)Cl) is an organometallic compound of platinum. This colourless solid, which is a commercially available, is an entry point to other platinum compounds through the displacement of the cod and/or chloride ligands. It is prepared from potassium tetrachloroplatinate and the diene:
KPtCl + CH → PtClCH + 2 KCl