Synthesis, characterization and molecular structure of the [(η6-C6Me6)Ru(μ-N3)(N3)]2 complex and its reactions with some monodentate ligands

The reaction of complex [(η6-C6Me6)Ru(μ-Cl)Cl]2 (1) with sodium azide yielded complexes of the composition [(η6-C6Me6)Ru(μ-N3)(N3)]2 (2) and [(η6-C6Me6)Ru(μ-N3)(Cl)]2 (3), depending upon the reaction conditions. Complex 3 with excess of sodium azide in ethanol yielded complex 2. Complexes 2 and 3 undergo substitution reactions with monodentate ligands such as PPh3, PMe2Ph and AsPh3 to yield monomeric complexes. The structure of complex 2 was determined by X-ray crystallography. All these complexes were characterized by micro analytical data and by FT-IR and FT-NMR spectroscopy. Complex 2 crystallizes in the monoclinic space group P21/n with a = 8.5370(11) Å, b = 16.192(2) Å, c = 10.4535(13) Å and β = 110.877(2)°.