Synthese und Kristallstrukturen der Amido‐Komplexe [Na(12‐Krone‐4)₂][M{N(SiMe₃)₂}₃] mit M = Mn, Fe und Co

Abstract

Syntheses and Crystal Structures of the Amido Complexes [Na(12‐Crown‐4) 2 ][M{N(SiMe 3 ) 2 } 3 ] with M = Mn, Fe, and Co The ionic amido complexes [Na(12‐crown‐4) 2 ][M[N‐(SiMe 3 ) 2 } 3 ] with M = Mn ( 1 ), Fe ( 2 ) and Co ( 3 ) were prepared by the reaction of M[N(SiMe 3 ) 2 ] 2 (M = Mn, Co) and Fe[N‐(SiMe 3 ) 2 ] 3 , respectively, with sodium bis(trimethylsilyl)amide in toluene solution in the presence of 12‐crown‐4. 1–3 were characterized by IR spectroscopy and by crystal structure determinations. The complexes consist of cations [Na(12‐crown‐4) 2 ] + with a sandwich‐like structure and anions [M{N(SiMe 3 ) 2 } 3 ] – in which the metal atoms are planarly coordinate by the three nitrogen atoms of the bis(trimethylsilyl)amido groups.