Synthesis and X-ray crystal structures of ansa-complexes of titanium, zirconium, and hafnium involving methylene-bis(indenyl) ligand
作者:Anton Y Agarkov、Vyacheslav V Izmer、Alexey N Riabov、Lyudmila G Kuz'mina、Judith A.K Howard、Irina P Beletskaya、Alexander Z Voskoboynikov
DOI:10.1016/s0022-328x(00)00666-5
日期:2001.1
27% (M=Zr) and 31% (M=Hf) yields using a simple work-up process. These zirconium and hafnium complexes were characterized by X-ray crystalstructure analysis. Methylene-bis(indenyl)titanium(IV) dichloride was prepared by two different pathways. The first one includes a treatment of TiCl4(THF)2 with dilithium salt of bis(indenyl)methane in THF. This procedure gives rac-H2C(indenyl)2TiCl2 in 16% only. An