Tris(dimethylamido)bis(dimethylamine)titanium(IV) chlorido-bis(dimethylamine)[tris(pentafluoro-phenyl)boron-amido][tris(penta -fluorophenyl) boron-nitrido]- titanate(IV) toluene solvate

The title ionic solid, [Ti(C2H6N)3(C2H7N)2][Ti(C18BF15N)- (C18H2BF15N)Cl(C2H7N)2]*C7H8, (I), comprises a cation with three dimethylamide ligands in the equatorial plane and two dimethylamine ligands positioned axially in a trigonalbipyramidal geometry about the central TiIV atom. The anion has a highly distorted octahedral structure. The two dimethylamine ligands are coordinated mutually trans. The chloride is trans to the tris(pentafluorophenyl)boron-amide, while the sixth coordination site is occupied by an ortho-F atom of the tris(pentafluorophenyl)boron-amide group in a trans disposition with respect to the tris(pentafluorophenyl)boron-nitride ligand. The most significant feature of the anion is the presence of an unprecedented terminal Ti(triple bond)N moiety [1.665 (2) A], stabilized by coordination to B(C6F5)3, with a Ti(triple bond)N-B angle of 169.50 (19) deg .