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Ferrocenyl‐Functionalised Molybdenum Imido Complexes: An Approach to Redox‐Tunable Olefin Polymerisation Catalysts
Authors:Ulrich Siemeling  Richard R. Schrock  Anja Stammler  Hans‐Georg Stammler  Oliver Kuhnert
Abstract:[(FcdippN)2MoCl2(DME)] ( 1 ) was used as starting material for the synthesis of the novel ferrocenyl‐functionalised complexes [(FcdippN)2Mo(CH2CMe2Ph)2] ( 2 ), [(FcdippN)2Mo(OTf)2(DME)] ( 3 ), and [(FcdippN)Mo(CHCMe2Ph)(OtBu)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)2MoCl2(DME)] ( 5 ) to [(DippN)2Mo(CH2CMe2Ph)Cl] ( 6 ) (Dipp = 2,6‐diisopropylphenyl) was achieved.
Keywords:Iron  Molybdenum  Crystal structure  Olefin metathesis  Cyclic voltammetry
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