Bis(butylcyclopentadienyl)zirconium(IV) dichloride
Bis(butylcyclopentadienyl)zirconium(IV) dichloride (CAS 73364-10-0; C18H26Cl2Zr; molar mass 404.53 g/mol) is an organometallic zirconocene complex bearing two n-butyl-substituted cyclopentadienyl ligands. Supplied as a crystalline solid (m.p. ~98.7-99.4 °C) at 97% assay, it is a moisture-sensitive metallocene used principally as a single-site pre-catalyst for olefin polymerisation. Tech Serve Solutions supplies it as a research and technical grade for ethylene polymerisation and ethylene-alpha-olefin copolymerisation.
- IUPAC
- Dibutylzirconocene dichloride
- Synonyms
- Bis(butylcyclopentadienyl)zirconium(IV) dichlorideBis(n-butylcyclopentadienyl)zirconium dichlorideDibutylzirconocene dichlorideBis(butylcyclopentadienyl)zirconium dichloride(BuCp)2ZrCl2
Ethylene-alpha-olefin copolymerisation
Acts as a metallocene pre-catalyst for the copolymerisation of ethylene with alpha-olefins, typically activated by methylaluminoxane (MAO) or related co-catalysts. It supports the production of linear low-density polyethylene and related copolymers with controlled comonomer incorporation.
Ethylene polymerisation
Used as a single-site catalyst for the homopolymerisation of ethylene to polyethylene. Its well-defined zirconocene structure offers narrow molecular-weight distributions characteristic of metallocene catalysis.
Supported metallocene catalyst systems
Serves as the active metallocene component in supported (heterogenised) catalyst systems, where the complex is immobilised on carriers such as silica for slurry- and gas-phase polyolefin processes.
Research in organometallic and polymer chemistry
Employed as a defined Group 4 metallocene reagent in laboratory studies of catalyst structure-activity relationships, ligand effects and olefin insertion mechanisms.
| Molecular weight | 404.53 |
|---|---|
| Empirical formula | C18H26Cl2Zr |
| Assay | 97% |
| Application | Catalyst for:• Copolymerization of ethylene-alpha-olefin1• Ethylene polymerization2Metallocene supported catalyst3 |
| Melting point | 98.7-99.4 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Bis(butylcyclopentadienyl)zirconium(IV) dichloride used for?
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It is used principally as a metallocene pre-catalyst for olefin polymerisation. Activated by a co-catalyst such as methylaluminoxane (MAO), it catalyses ethylene polymerisation and ethylene-alpha-olefin copolymerisation, and serves as the metallocene component in supported catalyst systems for polyolefin production.
What is the CAS number and molecular formula of Bis(butylcyclopentadienyl)zirconium(IV) dichloride?
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Its CAS number is 73364-10-0 and its empirical formula is C18H26Cl2Zr (Hill notation), with a molecular weight of 404.53 g/mol. The MDL number is MFCD00672105. It is also known as dibutylzirconocene dichloride.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bis(butylcyclopentadienyl)zirconium(IV) dichloride at a typical assay of 97%, as a research and technical grade for catalysis and synthesis. We do not represent it as a USP, BP or EP pharmacopoeial grade. A certificate of analysis can be provided with each batch on request.
How should this metallocene be handled and stored safely?
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The complex is moisture-sensitive and should be handled and stored under dry, inert conditions away from water and air. Recommended personal protective equipment includes eye shields, gloves and an N95 (US) or P1 (EN143) respirator filter. It carries a German Water Hazard Class (WGK) of 3, indicating it is severely hazardous to water, so prevent any release into drains, soil or watercourses. Always consult the Safety Data Sheet before use.
How is Bis(butylcyclopentadienyl)zirconium(IV) dichloride packed, shipped and exported?
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It is packed in tightly sealed, moisture-resistant containers appropriate to the order quantity, with packaging suited to its air- and moisture-sensitive nature. Tech Serve Solutions exports worldwide with full documentation and a Safety Data Sheet, observing the applicable transport and dangerous-goods regulations for the consignment.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, purity and packing, and intended destination. We will confirm availability, lead time and export documentation, and can arrange a sample where appropriate, then issue a formal quotation.
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