Abstract
This paper reports the synthesis and characterization of four neutral chromium(III) complexes bearing N,O,N′-tridentate ligands, [LCrCl3], (L=2-[(2-pyridylmethoxy)methyl]pyridine, 1; L=8-(2-pyridylmethoxy)quinoline, 2; L=8-[(2-pyridylmethoxy)methyl]quinoline, 3; L=8-(quinolin-8-ylmethoxy)quinoline, 4). Molecular structures of 1–3 have been determined by X-ray crystallography, which show that L1 and L3 exhibit facial configuration in 1 and 3 while L2 adopts meridional arrangement in 2. The ethylene polymerization experiments show that complexes 1–4 are moderately active precatalysts for ethylene polymerization with activation with MAO.
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