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Niobium and vanadium iminophosphinimide complexes.

J K Brask1, M G Fickes, P Sangtrirutnugul

  • 1Department of Chemistry, Room 2-227, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA.

Chemical Communications (Cambridge, England)
|September 21, 2002
PubMed
Summary

New iminophosphinimide complexes of vanadium and niobium were synthesized. These novel compounds were created using a four-step strategy starting from anionic nitride precursors.

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Area of Science:

  • Organometallic Chemistry
  • Inorganic Synthesis

Background:

  • Iminophosphinimide ligands offer unique coordination properties.
  • Early transition metal nitrides are challenging synthetic targets.

Purpose of the Study:

  • To synthesize novel iminophosphinimide complexes of vanadium and niobium.
  • To explore synthetic routes utilizing anionic nitride species.

Main Methods:

  • A four-step synthetic strategy was employed.
  • Starting materials included anionic nitride species of the type ([Ar(R)N]3M NNa)2.
  • The target complexes are of the form [Ar(R)N]3M(NPNBut) where M = V, Nb.

Main Results:

  • Successfully synthesized iminophosphinimide complexes of vanadium (V) and niobium (Nb).

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  • The synthesis involved a multi-step approach from anionic nitride precursors.

    • Conclusions:

    • The developed four-step synthetic route is effective for preparing iminophosphinimide complexes of early transition metals.
    • This work expands the scope of accessible organometallic compounds with iminophosphinimide ligands.