Asymmetric ansa-Zirconocenes Containing a 2-Methyl-4-aryltetrahydroindacene Fragment: Synthesis, Structure, and Catalytic Activity in Propylene Polymerization …
IE Nifant'ev, PV Ivchenko, VV Bagrov, Y Okumura…
文献索引：Nifant'ev, Ilya E.; Ivchenko, Pavel V.; Bagrov, Vladimir V.; Okumura, Yoshikuni; Elder, Michael; Churakov, Andrei V. Organometallics, 2011 , vol. 30, # 21 p. 5744 - 5752
A set of asymmetric bis-indenyl zirconium SiMe2-bridged ansa-complexes, containing 2- isopropyl-4-arylindenyl and 2-methyl-4-aryltetrahydroindacenyl fragments, have been synthesized. These complexes demonstrate better catalytic activity, stereoselectivty, and polymer molecular weight capability in propylene homo-and copolymerization in comparison to analogues without a tetrahydroindacenyl fragment.
