682334-75-4

Upstream product

• 682334-71-0 Ni(η1-CH2C6H4-p-CF3)Cl(bis(diisopropylphosphino)methane) 
• 143-66-8 sodium tetraphenyl borate 
• 682334-80-1 Ni(bis(diisopropylphosphino)methane)(cod) 
• 939-99-1 4-trifluoromethylbenzyl chloride 
• 63366-53-0 bis(di-i-propylphosphino)methane 

Relevant academic research and scientific papers

Cationic η3-benzyl nickel compounds with diphosphine ligands as catalyst precursors for ethylene oligomerization/ polymerization: Influence of the diphosphine bite angle

The oligomerization and/or polymerization of ethylene catalyzed by the cationic η3-benzylcomplexes [Ni(η 3-CH2C6H4-p-CF 3)(P-P)]+ BPh4- (P-P=iPr2P(CH2)n PiPr2, n=1-3) have been studied. The activity of these single component catalysts depends on the length of the (CH2)n bridge of the diphosphine ligand. Thus, the dippm derivative (n=1) displays higher activity than compounds of the dippe (n=2) or dippp (n=3) ligands. The molecular weight of the products is also a function of n, and varies in the order dippm > dippe > dippp, with the former two catalysts giving rise to low molecular weight polyethylenes and the latter to oligomers.