Triphenylphosphinimino‐triphenylstiboniumchlorid, [Ph 3 PNSbPh 3 Cl], und seine Reaktion mit FeCl 3

[Ph 3 PNSbPh 3 Cl] ( 1 ) was prepared by oxidative addition of ClNPPh 3 to triphenylstibine in dichloromethane solution. The compound is characterized by IR spectroscopy and by an X‐ray structure determination. 1 crystallizes in the monoclinic space group P2 1 /c with four formula units per unit cell. Lattice dimensions at 193 K: a = 925.3(1), b = 1777.2(1), c = 1825.5(1) pm, β = 94.07(1)°, R 1 = 0.0228. 1 forms monomeric molecules with tetrahedrally coordinated phosphorus and trigonal‐bipyramidally coordinated antimony atom, the atoms N and Cl being in axial positions. The bond lengths PN and SbN are 155.0(2) and 198.4(2) pm, respectively, the PNSb angle is 138.6(1)°. 1 reacts with iron trichloride to give the known phosphoraneiminato complex [FeCl 2 (NPPh 3 )] 2 .