A Series of Low‐Coordinate Iron Selenido Complexes: Reactivity of a Linear Iron(I) Silylamide towards Selenium

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A variety of different low‐coordinate iron selenide complexes is reported. These are obtained by reaction of the linear iron(I) silylamide K{18c6}[Fe(N(Dipp)SiMe3)2] (Dipp=2,6‐diisopropylphenyl) with red selenium. Careful adjustment of the reaction conditions results in the formation of unique low‐coordinate selenido iron complexes, namely a monoselenide bridged [2Fe−1Se]2+ complex, as well as mononuclear iron per‐ and triselenides. Further, C−H bond activation of one of the silylamide ligands by a putative terminal iron monoselenide is observed.