Description

[(Dimethylsilylene)Bis((1,2,3,3A,7A-η)-1H-Inden-1-Ylidene)Dimethyl]Hafnium is a highly specialized organometallic compound, specifically a hafnium-based metallocene catalyst precursor. This compound is of critical importance in advanced polyolefin catalysis, enabling the production of polymers with highly controlled microstructures and superior properties. It is primarily required by R&D chemists and process engineers in the petrochemical and specialty plastics industries for the development of next-generation polyolefin materials, including high-performance polyethylene and polypropylene.

Application

• Single-Site Catalyst for Polyolefin Production: As a key precursor for hafnocene catalysts used in the polymerization of ethylene and propylene.
• High-Performance Polyethylene (PE): Enables the synthesis of linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE) with enhanced strength, clarity, and processability.
• Advanced Polypropylene (PP): Used in catalyst systems for producing isotactic polypropylene with controlled tacticity and improved mechanical properties.
• Olefin Copolymerization: Facilitates the copolymerization of ethylene with α-olefins (e.g., 1-butene, 1-hexene) to create copolymers with tailored density and comonomer distribution.
• Research & Development: Serves as a critical reagent in academic and industrial R&D for exploring new catalytic pathways and polymer architectures.
• Specialty Elastomers and Plastomers: Used in catalyst formulations for producing very low-density polyethylene (VLDPE) and polyolefin elastomers (POE).

Basic Information

Product Name	[(Dimethylsilylene)Bis((1,2,3,3A,7A-η)-1H-Inden-1-Ylidene)Dimethyl]Hafnium
CAS No.	137390-08-0
Molecular Formula	C26H30HfSi2
Molecular Weight	573.3 g/mol
Synonyms	Dimethylsilylene-bis(indenyl)dimethylhafnium; Hafnium, [[1,1'-(dimethylsilylene)bis[1H-inden-1-ylidene]]bis(methyl)-; rac-Dimethylsilylenebis(indenyl)hafnium dimethyl; Hafnocene Catalyst Precursor; Metallocene Hafnium Complex; (rac)-Me2Si(Ind)2HfMe2; Bis(indenyl)hafnium derivative
EINECS	Contact for details

Quality Control

Our [(Dimethylsilylene)Bis((1,2,3,3A,7A-η)-1H-Inden-1-Ylidene)Dimethyl]Hafnium is manufactured under stringent quality protocols to ensure batch-to-batch consistency and high catalytic activity. All products undergo rigorous analytical testing, including NMR spectroscopy and elemental analysis, to verify identity, purity, and absence of deleterious impurities. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and R&D documentation.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (argon or nitrogen) at temperatures between 2°C and 8°C (refrigerated) to maximize shelf-life and maintain catalytic performance. This compound is moisture-sensitive (hygroscopic) and easily oxidized; therefore, it must be handled exclusively in a dry, oxygen-free environment using standard Schlenk line or glovebox techniques.

Specification

Item	Specification
Appearance	Off-white to beige crystalline solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Hafnium (Hf) Content	30.0 - 32.0 %
Solubility	Soluble in toluene, benzene, dichloromethane

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