Coordination Compounds of Chromium (+3) and Vanadium (+3) and (+5) with 2,6-Bis(diphenylhydroxymethyl)pyridyl Ligand: Synthesis and Study of Catalytic Activity in the Polymerization of Ethyleneстатья
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Дата последнего поиска статьи во внешних источниках: 19 июля 2013 г.
Аннотация:Coordination compounds of chromium (+3) and vanadium (+3) and (+5) with 2,6-bis(diphenylhydroxymethyl)pyridine have been synthesized. Composition and properties of the obtained complexes have been evaluated by NMR, IR spectroscopy, chromatography, X-ray diffraction, and elemental analysis. Coordination compounds of chromium were found to be incapable of catalytic polymerization of ethylene. Catalytic activity of vanadium (+3) and (+5) complexes in this reaction varied between 20 and 340 kg PE/mol V h atm after activation with diethylaluminum chloride, depending on the V/Al ratio.