Synthesis, characterization and catalytic behavior toward ethylene of cobalt(II) and iron(II) complexes bearing 2-(1-aryliminoethylidene)quinolines

Shengju Song, Weizhen Zhao, Lin Wang, Carl Redshaw, Fosong Wang, Wen-Hua Sun

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25 Citations (Scopus)

Abstract

A series of 2-(1-aryliminoethylidene)quinolines (L) were synthesized and used as bidentate N^N ligands in coordinating with metal (cobalt and iron) chlorides to form complexes of the type LMCl2, cobalt(II) (Co1Co5) and iron(II) (Fe1Fe5). All organic compounds and metal complexes were fully characterized, and the molecular structures of the representative complexes Co3·DMF and Fe4·DMF were confirmed as distorted bipyramidal geometry at the metal by single-crystal X-ray diffraction. Upon activation with either methylaluminoxane (MAO) or modified methylaluminoxane (MMAO) under 10 atm ethylene, all complexes showed high activities in ethylene dimerization with activities of up to 1.82 × 106 g mol-1 (Co) h-1 and 5.89 × 105 g mol-1 (Fe) h-1, respectively.
Original languageEnglish
Pages (from-to)3029-3035
Number of pages7
JournalJournal of Organometallic Chemistry
Volume696
Issue number18
DOIs
Publication statusPublished - 2011

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