Synthesis and Structural Characterization of Niobium(IV) Amido Complexes and a Niobium(V) Bis(imido) Complex

Article abstract of DOI:10.1021/ic00121a007

NbCl4(thf)2 and 4 equiv of LiNPh2 react to give the homoleptic Nb(IV) compound Nb(NPh2)4. The reactions of NbX4(thf)2 (X = Cl, Br) with 2 equivof lithium bis(trimethylsilyl)amide lead to the Nb(IV) amido halide complexes Nb(N(SiMe3)2)2X2, but the reaction