Hybrid catalysts: the synthesis, structure and ethene polymerisation activity of (salicylaldiminato)(pyrrolylaldiminato) titanium complexes

摘要

The mono(salicylaldiminato) complexes Ti{3-~tBu-2-(O)C_6H_3CH=N(R)}Cl_3(THF) (where R = C_6H_5, C_6F_5) react with the metallated pyrrolylaldiminato ligand, K[2-(C_6H_5NCH)C_4H_3N], to afford the first examples of hybrid salicylaldiminato-ligated octahedral titanium complexes; the pre-catalysts give from very high to extremely high ethene polymerisation productivities when activated with MAO.