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Keywords:

  • Metallocenes;
  • Molybdenum;
  • Silicon;
  • X-ray diffraction;
  • Coordination modes

Abstract

The reactivity of a [1],[1]disilamolybdenocenophane (1) towards several unsaturated substrates has been studied. Treatment of 1 with N-heterocyclic carbene afforded an ansa-metallocene carbene complex. The cleavage of the P=S bond of a phosphane sulfide was observed, resulting in the incorporation of sulfur into the disila-bridging unit and coordination of the phosphane moiety to Mo. Reactions of 1 with carbodiimide and phosphaalkyne led to side-on coordinated products. All products were fully characterized by multinuclear NMR spectroscopy, elemental analysis, and single-crystal X-ray diffraction studies.