[Mn4Br(CH=CMe 2 ) 3 (μ 3 ‐NPEt 3 ) 4 ] — ein 2‐Methyl‐prop‐1‐enyl‐Phosphaniminato‐Komplex von Mangan(II) mit Heterokubanstruktur

[Mn 4 Br(CH=CMe 2 ) 3 (μ 3 ‐NPEt 3 ) 4 ] — a 2‐Methyl‐prop‐1‐enyl‐Phosphoraneiminato Complex of Manganese(II) with Heterocubane Structure [Mn 4 Br(CH=CMe 2 ) 3 (μ 3 ‐NPEt 3 ) 4 ] ( 1 ) has been prepared from [MnBr(μ 3 ‐NPEt 3 )] 4 and BrMg(CH=CMe 2 ) in thf solution and subsequent extraction of the solvent‐free residue with n ‐hexane. 1 forms red single crystals from diethylether solution, which are characterized by a crystal structure determination. Space group P1¯, Z = 2, lattice dimensions at —80 °C: a = 1144.7(1), b = 1411.3(2), c = 1521.8(2) pm, α = 91.581(14), β = 90.163(14), γ = 91.947(14)°, R 1 = 0.0448. 1 exhibits a Mn 4 N 4 heterocubane core, a terminally coordinated bromine ligand and three Mn—CH=CMe 2 groups with M—C bond lengths of 213.8 pm on average.