915025-64-8Relevant academic research and scientific papers
Synthesis, characterization and ethylene oligomerization studies of nickel complexes bearing 2-imino-1,10-phenanthrolines
Sun, Wen-Hua,Zhang, Shu,Jie, Suyun,Zhang, Wen,Li, Yan,Ma, Hongwei,Chen, Jiutong,Wedeking, Katrin,Fr?hlich, Roland
, p. 4196 - 4203 (2007/10/03)
A series of nickel (II) complexes ligated by 2-imino-1,10-phenanthrolines were synthesized and characterized by elemental and spectroscopic analysis as well as by single-crystal X-ray crystallography. X-ray crystallographic analysis reveals complexes 3, 5, 7 and 11 as the five-coordinated distorted trigonal-bipyramidal geometry. Upon activation with Et2AlCl, these complexes exhibited considerably high activity for ethylene oligomerization (up to 3.76 × 107 g mol-1(Ni) h-1 for 12 with 10 equiv. of PPh3). The ligand environment and reaction conditions significantly affect the catalytic activity of their nickel complexes.
