Titanium Complexes with a Linked Amido−Cyclopentadienyl Ligand and a Bidentate Organyl Group: Synthesis, Structure, and Ethene Polymerization Activity

✍ Scribed by Thomas Eberle; Thomas P. Spaniol; Jun Okuda

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 544 KB
• Volume: 1998
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/(sici)1099-0682(199802)1998:2<237::aid-ejic237>3.0.co;2-p

✦ Synopsis

Titanium complexes containing a linked isopropyl-or benz-{C 6 H 4 (CH 2 NMe 2 )-2}Cl and of Ti(η 5 :η 1 -C 5 Me 4 SiMe 2 NiPr)-{CH 2 C 6 H 4 (NMe 2 )-2}Cl revealed the presence of intramolecu-ylamido(tetramethylcyclopentadienyl) ligand C 5 Me 4 Si-Me 2 NR (R = iPr, CH 2 Ph,) and one bidentate organyl group lar coordination with square pyramidal geometry around titanium. In the ferrocenyl derivative Ti(η 5 :η 1 -C 5 Me 4 -C 6 H 4 (CH 2 NMe 2 )-2, CH 2 C 6 H 4 (NMe 2 )-2, and {η 5 -C 5 H 3 (CH 2 NMe 2 )-2}Fe(η 5 -C 5 H 5 ) were prepared by salt meta-SiMe 2 NCH 2 Ph)[{η 5 -C 5 H 3 (CH 2 NMe 2 )-2}Fe(η 5 -C 5 H 5 )]Cl the NMe 2 group is not bonded at the titanium atom. Ethene poly-thesis of the corresponding dichloro complex Ti(η 5 :η 1 -C 5 Me 4 SiMe 2 NR)Cl 2 with the lithium organyl. Single crystal merization catalyzed by these complexes upon activation with methylaluminoxane was examined. X-ray structural analysis of Ti(η 5 :η 1 -C 5 Me 4 SiMe 2 NCH 2 Ph)-