654055-13-7

Basic information

• Product Name: diphenylsilylene-(η5-9-fluorenyl)-[η5-1-(3-tert-butyl)indenyl]zirconium dichloride
• CAS NO: 654055-13-7
• Molecular Weight: 678.888
• Mol File: 654055-13-7.mol

Chemical Properties

• CAS DataBase Reference: diphenylsilylene-(η5-9-fluorenyl)-[η5-1-(3-tert-butyl)indenyl]zirconium dichloride(CAS DataBase Reference)
• NIST Chemistry Reference: diphenylsilylene-(η5-9-fluorenyl)-[η5-1-(3-tert-butyl)indenyl]zirconium dichloride(654055-13-7)
• EPA Substance Registry System: diphenylsilylene-(η5-9-fluorenyl)-[η5-1-(3-tert-butyl)indenyl]zirconium dichloride(654055-13-7)

Safety Data

• Hazardous Substances Data: 654055-13-7(Hazardous Substances Data)

Upstream product

• 10026-11-6 zirconium(IV) chloride 
• 654055-10-4 (9-fluorenyl)-1-[(3-tert-butyl)indenyl]diphenylsilane 

Relevant articles and documents

Novel C1 symmetric zirconocenes containing substituted indenyl moieties for the stereoregular polymerization of propylene

The synthesis and polymerization behavior of four new asymmetric ansa -metallocenes containing a fluorenyl moiety and a substituted indenyl moiety is reported. The zirconocenes diphenylsilylene-(η 5-9-fluorenyl)-[η5-1-(3-t-butyl)indenyl]- zirconium dichloride (4), dimethylsilylene-(η5-9- fluorenyl)-[η5-1-(3-t-butyl)indenyl]-zirconium dichloride (5), ethylene-1-(η5-9-fluorenyl)-2-[η5-1- (3-t-butyl)indenyl]-zirconium dichloride (6), and diphenylsilylene- (η5-9-fluorenyl)-[η5-1-(2-methyl-4-phenyl) indenyl]-zirconium dichloride (8) were all found to be highly active for the polymerization of both ethylene and propylene when activated with excess methylaluminoxane. Compound 8 was found to produce highly isotactic polypropylene with an [mmmm] value of 83%.