Axial-phenyl Constrained Bis(imino)acenaphthene-Nickel Precatalysts Enhancing Ethylene Polymerization

To enhance the performance of the bis(imino)acenaphthene-nickel precatalyst, the axial phenyl group is introduced on the acenaphthenyl backbone forming five analogues, bis(aryl)imino-5-phenylacenaphthene nickel bromides (aryl: 2,6-dimethylphenyl, Ni1; 2,6-diethylphenyl, Ni2; 2,6-diisopropylphenyl,...