| 摘要 |
Polysubstituted cyclopentadiene-containing compound, in which at least one substituent is of the form -RDR'n, in which R is a linking group between the cyclopentadiene and the DR'n group, D is a hetero atom selected from group 15 or 16 of the Periodic System of the Elements or an aryl group, in which case R has at least the length of an ethylene group, R' is a substituent and n is the number of R' groups bound to D. Metal complexes in which at least one of these cyclopentadiene compounds is present as a ligand are useful as catalysts for the polymerisation of alpha-olefins. |
