Manganese(II) Silylamides

Abstract

Abstract Mn[N(SiMe 3 ) 2 ] 2 (THF) ( I ) (Me = methyl, THF = tetrahydrofuran) was obtained on large scale from “active” MnCl 2 and LiN(SiMe 3 ) 2 in THE in 85–93% yield. The novel, theoretically interesting tetra‐coordinated Mn[N(SiMe 3 ) 2 ] 2 L 2 series was derived from I , where L = THF, pyridine and t‐butyleyanide. All these species are quite stable thermally and exhibit exteme oxygen sensitivity. Preparation, properties, and reactions of unsymmetrically substituted (“hemi”) XMnY type compounds are presented also, where X = Cl, NO 3 and n = butyl, and Y = N(SiMe 3 ) 2 and OR. From ClMnN(SiMe 3 ) 2 , with or without coordinated THF being present, the unusual (Mn{SiMe 3 ) 2 , was isolated as yellow crystals. The “hemi” Mn(II)‐system exhibits only moderate thermal stability and tends to disproportionate. Many derivatives are photosensitive, especially with UV light.