Addition von metallorganischen Nucleophilen an koordinierte 1,3-Diene, Trimethylenmethan und Cycloheptatrienyl: Heterobimetallische Carbonyl-Molybdän-Rhenium-Komplexe mit σ,π-C4- und -C7-Kohlenwasserstoffbrücken

Die Addition der metallorganischen Nucleophile [M(CO)5]− (M = Mn, Re) an [CpMo(CO)2(dien)]+, [CpMo(CO)2(cyclopentadien)]+, [CpMo(CO)2(cyclohexadien)]+ und [CpMo(CO)2-(trimethylenmethan)]+ liefert die heterobimetallischen η1:η3-Kohlenwasserstoff-verbruckten Komplexe 1–8. [Re(CO)5]− setzt sich mit [(OC)3Mo(η7-C7H7)]+ zum Produkt des nucleophilen Angriffs (OC)3Mo(μ-η1:η6-C7H7)-exo-Re(CO)5 (9) und zum Redoxprodukt (OC)3Mo(η6-C7H7C7H7) (10) um. Die Strukturen von Cp(OC)2Mo(μ-η1:η3-CH3CHCHCHCH2)Re(CO)5 (3) sowie von 9 und 10 wurden rontgenographisch gesichert. Addition of Organometallic Nucleophiles to Coordinated 1,3-Dienes, Trimethylenemethane, and Cycloheptatrienyl: Heterobimetallic Carbonyl Molybdenum Rhenium Complexes with σ,π-C4 and -C7 Hydrocarbon Bridges The addition of organometallic nucleophiles to and gives the heterobimetallic η1:η3-hydrocarbon-bridged complexes 1–8. [Re(CO)5]− reacts with [(OC)3Mo(β7-C7H7)]+ to give the product of nucleophilic attack (OC)3Mo(μ-η1:η6-C7H7)-exo-Re(CO)5 (9) and the redox product (OC)3Mo(η6-C7H7C7H7) (10). The crystal structures of Cp(OC)2Mo(μ-η1:η3-CH3CHCHCHCH2)Re(CO)5 (3), 9, and 10 have been determined by X-ray diffraction.

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