80155-52-8

Usage

Uses

Used in Polymerization Processes:
Cyclopentadienylindenylzirconium dichloride is used as a catalyst in polymerization processes for its ability to initiate and control the formation of polymers. It is particularly effective in the synthesis of polyolefins and elastomers, contributing to the production of a wide range of commercial polymers.
Used in the Chemical Industry:
In the chemical industry, Cyclopentadienylindenylzirconium dichloride is utilized as a catalyst for its high reactivity and selectivity, which are essential for the efficient and precise synthesis of complex polymeric materials. Its application ensures the production of polymers with desired properties and characteristics, meeting the specific requirements of various applications.
Used in Material Science:
Cyclopentadienylindenylzirconium dichloride plays a significant role in material science, where it is employed in the development of advanced materials with unique properties. Its use in polymerization reactions allows for the creation of materials with tailored characteristics, such as improved strength, flexibility, and thermal stability, which are crucial for various high-performance applications.
Used in Research and Development:
In research and development, Cyclopentadienylindenylzirconium dichloride is an invaluable tool for exploring new chemical reactions and synthesizing novel materials. Its unique catalytic properties enable chemists to investigate the potential of various monomers in polymerization reactions, leading to the discovery of new polymers with innovative properties and applications.

InChI:InChI=1/C9H7.C5H5.2ClH.Zr/c1-2-5-9-7-3-6-8(9)4-1;1-2-4-5-3-1;;;/h1-7H;1-3H,4H2;2*1H;/q;;;;+2/p-2/rC14H12Zr.2ClH/c1-4-8-13-11(5-1)9-10-14(13)15-12-6-2-3-7-12;;/h1-6,8-10,14H,7H2;2*1H/q+2;;/p-2

Upstream product

• 82163-52-8 indenyl thallium(I) 
• 95-13-6 1-indene 
• 20669-47-0 lithium indenide 

Downstream Products

• 301336-72-1 [Zr(η5-C5H5)(η5-C9H7)(SC6H5)2] 
• 301336-68-5 [Zr(η5-C5H5)(η5-C9H7)(C6H5)2] 
• 207917-43-9 [Zr(η5-C5H5)(η5-C9H7)(C6H5)Cl] 
• 207917-44-0 [Zr(η5-C5H5)(η5-C9H7)(SC6H5)Cl] 

Relevant academic research and scientific papers

Neutral dimethylzirconocene complexes as initiators for the ring-opening polymerization of ε-caprolactone

The synthesis, structures, and ring-opening polymerization (ROP) activity of new dimethyl-ansa- and -non-ansa-zirconocene complexes are reported. The substituted indene precursors 1-C9H7R [R = CH3 (1), CH2Ph (2) and C2H4(C4H 7O2) (3)] were synthesised by treating RBr [R = CH 2Ph and C2H4(C4H7O 2)] or MeI with indenyllithium. Likewise, bridged indenyl/cyclopentadiene compounds [Me2Si(3-C9H 6R)(C5Me4H)] [R = H (4), CH3 (5), CH2Ph (6) and C2H4(C4H 7O2) (7)] were obtained by treating the lithium salt of the appropriately substituted indene with ClSiMe2(C 5Me4H). ansa-Indenyl-cyclopentadienylmetallocenes [Zr{Me2Si(3-η5-C9H5R) (η5-C5Me4)}Cl2] [R = H (8), CH3 (9), CH2Ph (10), C2H4(C 4H7O2) (11)] were subsequently obtained by treating the dilithium salts of the corresponding ligands with ZrCl4 in toluene. The dimethyl derivatives [Zr{Me2Si(3-η5- C9H5R)(η5-C5Me 4)}Me2] [R = H (12), CH3 (13), CH2Ph (14), C2H4(C4H7O2) (15)] were prepared by treating the corresponding ansa-zirconocene dichloride complex with MgMeBr. Dialkyl derivative [Zr{Me2Si{3-η5-C 9H5(CH2Ph)}(η5-C 5Me4)}(CH2SiMe3)2] (16) was prepared by adding 2 equiv. of LiCH2SiMe3 to complex 10. Mixed indenyl/cyclopentadienylzirconocene complexes [Zr(η5- C9H6R)(η5-C5H 5)Cl2] [R = H (17), C2H4(C 4H7O2) (18)] were prepared by treating the lithium salt of the appropriately substituted indene with [Zr(η5- C5H5)Cl3]. Likewise, dimethyl derivatives [Zr(η5-C9H6R)(η5-C 5H5)Me2] [R = H (19), C2H 4(C4H7O2) (20)] were prepared by treating the corresponding mixed indenyl/cyclopentadienyl dichloride complex with 2 equiv. of MgMeBr. The X-ray crystal structures of 7, 12, and 13 were also established. Finally, comparative catalytic studies of zirconium complexes 12-16, 19 and 20 in ROP reactions of ε-caprolactone are described. Synthesis, characterization, and catalytic studies of new dimethyl-ansa- and -non-ansa-zirconocene complexes for ring-opening polymerization of ε-caprolactone are described. Copyright

Synthesis of racemic chiral-at-metal complexes of the Group 4 metals

A protocol for asymmetric synthesis of chiral-at-metal complexes is described, but enantiomerically-enriched products can not be isolated due to formation of complexes between the Group 4 metallocene products and the borane by-products. An efficient method for synthesis of racemic chiral-at-metal metallocenes, through lithium chloride catalysed ligand redistribution reactions, is described. Sterically-hindered racemic chiral-at-metal complexes are prepared by nucleophilic substitution of prochiral dichlorides.

DITHIOCARBAMATE ANIONS AS SALTS OF OXINATE CHELATES OF ZIRCONIUM(IV)

(η5-cycopentadienyl) (η5-pyrrolyl) zirconium(IV) dichloride, (η5-pyrrolyl)zirconium(IV)dichloride and (η5-cyclopentadienyl)(η5-indenyl)zirconium(IV) dichloride, when treated with 8-hydroxyquinoline (oxine) in aqueous medium form ionic derivatives of the type, 5-R)(η5-R')ZrL>(1+)Cl(1-) (R = C5H5, C9H7, R'= C4H4N; R = C5H5, R'= C9H7; L is a conjugate base of oxine.These react with dithiocarbamate anions in aqueous solution, giving ionic complexes of the type, 5-R)(η5-R')ZrL>(1+)X(1-) (X= Me2NCS2, Et2NCS2 and iPr2NCS2).IR and 1H-NMR studies demonstrate that ligand L is chelating in all the cases.Consequently there is tetrahedral coordination around the zirconium(IV) ion.