Iron and Cobalt Complexes of a Series of Tridentate P, N, P Ligands — Synthesis, Characterization, and Application in Ethene Polymerization Reactions

✍ Scribed by Gabi Müller; Martti Klinga; Markku Leskelä; Bernhard Rieger

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: German
• Weight: 254 KB
• Volume: 628
• Category: Article
• ISSN: 0372-7874
• DOI: 10.1002/1521-3749(200213)628:13<2839::aid-zaac2839>3.0.co;2-9

✦ Synopsis

A series of tridentate P,N,P ligands comprising a central pyridine unit and two pendent diarylphosphane moieties (2,6bis(CH 2 PAr 2 )pyridine; Ar ϭ phenyl (1), 2-methylphenyl (2), 2,4,6trimethylphenyl (3)) as well as the corresponding iron (1-FeCl 2 , 2-FeCl 2 , 3-FeCl 2 ) and cobalt (1-CoCl 2 , 2-CoCl 2 , 3-CoCl 2 ) complexes were synthesized and characterized. An X-ray structure analysis of 2-CoCl 2 and 3-CoCl 2 exhibited a trigonal-bipyramidal coordination geometry at the metal center, the two chlorine atoms Eisen-und Cobaltkomplexe mit dreizähnigen P,N,P-Liganden ؊ Synthese, Charakterisierung und Verwendung als Katalysatoren für die Ethenpolymerisation Inhaltsübersicht. Eine Reihe von dreizähnigen P,N,P-Liganden, bestehend aus einer 2,6-diarylphosphansubstituierten Pyridineinheit (2,6-bis(CH 2 PAr 2 )pyridin; Ar ϭ phenyl (1), 2-methylphenyl (2), 2,4,6-trimethylphenyl (3)), wurde zu den entsprechenden Eisen-(1-FeCl 2 , 2-FeCl 2 , 3-FeCl 2 ) und Cobaltkomplexen (1-CoCl 2 ,