Effects of electrochemical properties of ferrocenylpyrazolylnickel(ii) and palladium(ii) compounds on their catalytic activities in ethylene oligomerisation reactions.

ABSTRACT: Palladium complexes of ferrocenylpyrazolylpyridine and ferrocenylpyrazolylamine were synthesised and screened as pre-catalysts (1-4) for olefin polymerisation. The pre-catalysts 1-4 on activation with EtAlCl₂ in the presence of ethylene with chlorobenzene or hexane as solvent were highly active with 1 being the most active, with an activity of 360 kg mol Pd^-1 h^-1. The major product from the reaction was 1-butene and high carbon content oligomers. The molecular weight (m/z) of the high carbon content oligomers is as high as 623.0. When toluene is used as solvent, the products obtained were ethyltoluene and butyltoluene and 1-butene. The electronic properties of the ligands (L1-L7) and complexes (1-10) were determined by cyclic voltammetry (CV)

SUBMITTER: Obuah C 

PROVIDER: S-EPMC9078115 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature