Bis(cyclopentadienyl)zirconium dichloride

• CAT Number: M048256
• CAS Number: 1291-32-3
• Molecular Formula: C10H10Cl2Zr
• Molecular Weight: 292.32
• Purity: ≥95%
• Storage: Desiccate at +4℃
• IUPAC Name: cyclopenta-1,3-diene;dichlorozirconium(2+)
• InChI: InChI=1S/2C5H5.2ClH.Zr/c2*1-2-4-5-3-1;;;/h2*1-5H;2*1H;/q2*-1;;;+4/p-2
• InChIKey: QMBQEXOLIRBNPN-UHFFFAOYSA-L
• SMILES: [CH-]1C=CC=C1.[CH-]1C=CC=C1.Cl[Zr+2]Cl

Bis(cyclopentadienyl)zirconium dichloride (Cat No.: M048256), commonly known as zirconocene dichloride (Cp₂ZrCl₂), is a metallocene compound where a zirconium(IV) center is sandwiched between two cyclopentadienyl (Cp) ligands and coordinated to two chloride ions. It appears as a red-orange crystalline solid and is widely used in organometallic chemistry as a precatalyst for olefin polymerization, especially in Ziegler–Natta and metallocene catalysts. Its structure allows for diverse derivatization and activation, making it valuable in the synthesis of polymers, fine chemicals, and specialty materials.