Vanadium(V) hydrazido(2−) thiolate imine alkoxide complexes

Abstract

The reaction of (Me₃Si)₂TIP with V(NNMe₂)(OAr)₃ results in the production of V(NNMe₂)(TIP)(OAr), where TIP is 2-((2-thiolatophenylimino)methylene)phenolate. The aryloxide is readily displaced by ISiMe₃ to form an insoluble iodide complex formulated as V(NNMe₂)(TIP)(I). The iodide was used to prepare three different complexes: [V(NNMe₂)(TIP)(dmpe)]I, [V(NNMe₂)(TIP)(Bu^tbpy)][OTf], and [V(NNMe₂)(TIP)(Bu^tbpy)][SbF₆]. The phosphine derivative, [V(NNMe₂)(TIP)(dmpe)]I, was characterized by X-ray diffraction and shows a quite short N–N distance of 1.293(3) Å indicative of a dominant isodiazene resonance form.