| abstract |
Polysubstituted cyclopentadiene compound of which at least two substituents are branched C5-, C6- or C7-alkyl groups, and use thereof for preparing a metal complex in a polar solvent. The metal complex, wherein at least one substituted cyclopentadiene compound in which at least two substituents are branched alkyl groups is present as a ligand, can be used as a catalyst component in the polymerization of α-olefins. |