Ferrocenyl-functionalised molybdenum imido complexes: An approach to redox-tunable olefin polymerisation catalysts

摘要

(FcdippN)(2)MoCl2(DME)] (1) was used as starting material for the synthesis of the novel ferrocenyl-functionalised complexes [(FcdippN)(2)Mo(CH2CMe2Ph)(2)] (2). [(FcdippN)(2)Mo(OTf)(2)(DME)] (3), and [(FcdippN)Mo(CHC- Me2Ph)((OBu)-Bu-t)(2)] (4) (Fcdipp = 4-ferrocenyl-2,6-diisopropylphenyl). The crystal structure of 2 was determined. Electrochemical investigations by cyclic voltammetry suggest a communication of the ferrocenyl unit and the molybdenum centre in these compounds. The monoalkylation of [(DippN)(2)MoCl2(DME)] (5) to [(DippN)(2)Mo(CH2CMe2Ph)Cl] (6) (Dipp = 2,6-diisopropylphenyl) was achieved. [References: 19