1210409-72-5Relevant academic research and scientific papers
Synthesis, characterization and ethylene oligomerization and polymerization of 2-(1H-2-benzimidazolyl)-6-(1-(arylimino)ethyl)pyridylchromium chlorides
Xiao, Liwei,Zhang, Min,Sun, Wen-Hua
, p. 142 - 147 (2010)
A series of N^N^N tridentate chromium complexes (C1-C6) bearing 2-(1H-2-benzimidazolyl)-6-(1-(arylimino)ethyl)pyridine derivatives was synthesized and characterized by elemental and spectroscopic analysis along with single-crystal X-ray crystallography. X-ray crystallographic analyses reveal chromium complex C1 as a distorted six-coordinated octahedral geometry. On treatment with modified methylaluminoxane (MMAO), the chromium complexes exhibited high activities for ethylene oligomerization (up to 1.50 × 106 g mol-1 (Cr) h-1) and polymerization (up to 2.06 × 106 g mol-1 (Cr) h-1) at 10 atm ethylene pressure. Various reaction parameters were investigated in detail, and less steric hindrance and electron-withdrawing substituents of ligands enhance the catalytic activities of their chromium complexes.
