NDLI: N-(5,6,7-Trihydroquinolin-8-ylidene)-2-benzhydrylbenzenaminonickel halide complexes: synthesis, characterization and catalytic behavior towards ethylene polymerization

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wang, Lin Hou, Xiaohua Cai, Zhengguo Redshaw, Carl Sun, Wen-hua Chen, Xia
Description	Author Affiliation: Hou X ( School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China.)
Abstract	A series of N-(5,6,7-trihydroquinolinylidene)-2-benzhydrylbenzenamine ligands was synthesized and characterized by $^{1}H/$ $^{13}C$ NMR and IR spectroscopy , and by elemental analysis . These ligands reacted with $NiCl_{2}$ or $NiBr_{2}(DME)$ to form the title halide complexes, which were also characterized by IR spectroscopy and elemental analysis . Single crystal X-ray diffraction revealed that the representative nickel complexes crystallized as centro-symmetric dimers with chloro-bridges linking distorted octahedral nickel centers. On activation with either methylaluminoxane (MAO) or diethylaluminium chloride $(Et_{2}AlCl),$ all nickel pre- catalysts showed high activities for ethylene polymerization , producing polyethylene with narrow molecular weight distribution, consistent with single-site catalysis. The nature of the ligands and reaction parameters were investigated and discussed in terms of their influence on the catalytic behavior of these nickel pre- catalysts .
ISSN	14779226
Issue Number	5
Journal	Dalton Trans.
Volume Number	41
e-ISSN	13645447
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2012-02-07
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Chemistry
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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