This invention relates to heteroatom substituted cyclopentadienyl-containing ligands, metal complexes containing these ligands, catalyst systems prepared from catalyst components comprising these metal complexes. The metal complexes contain a “a” heteroatom-Cp bond or a ring heteroatom-Cp bond in the 3-position of the Cp. In preferred metal complexes the ligand is a 3-heteroatom substituted indenyl group. The catalyst systems for olefin polymerization may be used at high temperatures, are highly active and produce high molecular weight polymer.
本发明涉及杂原子取代的
环戊二烯基含
配体、包含这些
配体的
金属络合物、由催化剂组分制备的催化体系。
金属络合物包含“a”杂原子-Cp键或环杂原子-Cp键在Cp的3位。在首选
金属络合物中,
配体是3-杂原子取代的
茚基基团。烯烃聚合的催化体系可在高温下使用,具有高活性并产生高分子量聚合物。