Description

Isopropylidene(Cyclopentadienyl-9-Fluorenyl) Zirconium Dichloride is a highly specialized metallocene catalyst precursor, essential for advanced polyolefin polymerization processes. Its precise molecular architecture enables superior control over polymer tacticity, molecular weight distribution, and comonomer incorporation, which is critical for developing high-performance materials. This compound is primarily required by R&D chemists and process engineers in the catalyst development and specialty polymer manufacturing sectors.

Application

• As a single-site catalyst precursor for the synthesis of isotactic polypropylene (iPP) with narrow molecular weight distribution.
• In the copolymerization of ethylene with α-olefins (e.g., 1-hexene, 1-octene) to produce linear low-density polyethylene (LLDPE) with tailored density and mechanical properties.
• For the development of advanced elastomeric polyolefins and thermoplastic polyolefin (TPO) materials used in automotive and packaging applications.
• In academic and industrial research focused on stereospecific polymerization mechanisms and new catalyst ligand design.
• As a key component in supported catalyst systems for gas-phase and slurry-phase polymerization reactors.
• For the production of high-clarity film grades and specialty polymers requiring precise microstructural control.

Basic Information

Product Name	Isopropylidene(Cyclopentadienyl-9-Fluorenyl) Zirconium Dichloride
CAS No.	130638-44-7
Molecular Formula	C₂₂H₁₈Cl₂Zr
Molecular Weight	438.48 g/mol
Synonyms	rac-Isopropylidene(cyclopentadienyl)(9-fluorenyl)zirconium dichloride; rac-[Dimethylsilyl-bis(9-fluorenyl)]zirconium dichloride (common misnomer); rac-Me₂C(Cp)(Flu)ZrCl₂; (rac)-Dimethylsilylene(cyclopentadienyl)(9-fluorenyl)zirconium dichloride; CGC-type Zirconocene Catalyst; Constrained Geometry Catalyst (CGC) Precursor; ansa-Zirconocene Dichloride; Bridged Metallocene Zirconium Dichloride
EINECS	Contact for details

Quality Control

Every batch of our metallocene catalysts undergoes rigorous analytical testing to ensure identity, purity, and catalytic performance. Our quality protocols are designed to meet the stringent requirements of advanced polymerization research and production. A comprehensive Certificate of Analysis (COA) detailing NMR (¹H, ¹³C), elemental analysis (C, H, Cl, Zr), and purity assay is provided with each shipment to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) at 2-8°C in a cool, dry place. This compound is hygroscopic (moisture-sensitive) and easily oxidized; prolonged exposure to air or moisture will degrade its catalytic activity. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (NMR)	Conforms to structure
Purity (NMR / HPLC)	≥ 95.0%
Zirconium Content	20.0 - 21.5 %
Chlorine Content	15.5 - 16.5 %
Solubility	Soluble in toluene, dichloromethane, THF

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.