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Two‐Coordinate Iron(I) Complex [Fe{N(SiMe3)2}2]−: Synthesis,Properties, and Redox Activity
Authors:C. Gunnar Werncke,Philip C. Bunting,Carine Duhayon,Jeffrey R. Long,Sé  bastien Bontemps,Sylviane Sabo‐Etienne
Abstract:
First‐row two‐coordinate complexes are attracting much interest. Herein, we report the high‐yield isolation of the linear two‐coordinate iron(I) complex salt [K(L)][Fe{N(SiMe3)2}2] (L=18‐crown‐6 or crypt‐222) through the reduction of either [Fe{N(SiMe3)2}2] or its three‐coordinate phosphine adduct [Fe{N(SiMe3)2}2(PCy3)]. Detailed characterization is gained through X‐ray diffraction, variable‐temperature NMR spectroscopy, and magnetic susceptibility studies. One‐ and two‐electron oxidation through reaction with I2 is further found to afford the corresponding iodo iron(II) and diiodo iron(III) complexes.
Keywords:Einzelmolekü  lmagnete  Eisenkomplexe  Eisen(I)  Oxidationen  Zweifach koordinierte Komplexe
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