Zirconium and Hafnium Permethylpentalene Compounds
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A selection of new η8-permethylpentalene zirconium and hafnium complexes are reported. The first d-block metal bis(permethylpentalene) sandwich complexes, (Pn*2M ; Pn* = C8Me6 ; M = Zr, Hf) have been synthesized and structurally characterized. The bis-allyl species Pn*M(C3H5)2 (M = Zr, Hf) have been synthesized; these complexes are fluxional in solution and react with CO2 to give the double-insertion product Pn*M(κ2-O2CCH2CHCH2)2 (M = Zr, Hf). We also report monometallic, bimetallic, and polymeric σ-bonded alkyl derivatives such as (Pn*Zr)2(μ-CH2)(μ-Me)2, [Pn*Hf(CH2Ph)3][Li(1,4-dioxane)4], and [Pn*ZrPh(μ-Ph)2Li(μ-1,4-dioxane)]n.
创建时间：
2016-06-21
