Group (IV) and (X) metal complexes with ketoiminate ligands are prepared by deprotonation of a ketoimine ligand followed by reaction with the appropriate metal halide. In preferred cases, the compounds are titanium (IV), zirconium (IV) and hafnium (IV), preferred cases, the compounds are titanium (IV), zirconium (IV) and hafnium (IV) complexes with (arylimino-alkyl)-spiro[4,5]decan-6-one ligands. The compounds are useful as catalysts for polymerizing ethylene, C
3
-C
10
-alpha olefins and C
4
-C
10
cyclic alkenes and for copolymerizing ethylene with comonomers.
采用酮
亚胺配体的(IV)族和(X)族
金属配合物是通过去质子化酮
亚胺配体,然后与适当的
金属卤化物反应制备的。在优选情况下,化合物是
钛(IV)、
锆(IV)和
铪(IV)与(芳基
亚胺基-烷基)-螺[4,5]
癸酮配体的配合物。这些化合物可用作催化剂,用于聚合
乙烯、C3-C10-α烯烃和C4-C10环烯烃以及与共聚单体共聚
乙烯。