| 摘要 |
A process for the preparation of a meso/racemic-Äbis(indenyl)ethaneÜ zirconium dichloride compound comprising (a) reacting zirconium tetrachloride with the solid reaction product of the bis(indenyl)ethane ligand with an alkyllithium in a solvent as reaction medium and (b) recovering a solid mixture of lithium chloride and meso/racemic composition of Äbis(indenyl)ethaneÜzirconium dichloride, characterized in that the solvent used as reaction medium in reaction (a) is an ether, pentane or a mixture thereof.
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