… of zirconium and hafnium complexes bearing dimethylsilandiyl-bis-2, 4, 6-trimethylindenyl and dimethylsilandiyl-bis-2-methyl-4, 6-diisopropylindenyl ligands

…, DA Sorokin, LG Kuz'mina, AV Churakov…

Index: Izmer, Vyacheslav V.; Sorokin, Denis A.; Kuz'Mina, Lyudmila G.; Churakov, Andrei V.; Howard, Judith A.K.; Voskoboynikov, Alexander Z. Journal of Organometallic Chemistry, 2005 , vol. 690, # 4 p. 1067 - 1079

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Citation Number: 3

Abstract

Zirconium and hafnium ansa-complexes containing 2, 4, 6-trialkyl-substituted indenyl fragments were synthesized and unambiguously characterized. Mixtures of rac-and meso- Me2Si (2-Me-4, 6-R2C9H3-η5) 2MCl2, where R= Me, i-Pr and M= Zr, Hf, were obtained by a treatment of MCl4 by dilithium salts of the respective bis (2, 4, 6-trialkylindenyl) dimethylsilanes in toluene. Alternatively, better yields of the same complexes can be ...