217488-17-0Relevant academic research and scientific papers
Synthesis and Structure of [Re(NH)Cl2(PMe2Ph)3][TaCl6] and [(Me2PhP)3Cl2Re≡N]2VOCl 2
Haug,Straehle
, p. 1746 - 1750 (2008/10/09)
The products of the reaction of ReNCl2(PMe2Ph)3 with TaCl5 are dependent on the solvent. In CH2Cl2 the solvent protonates the nitrido ligand to yield [Re(NH)Cl2(PMe2Ph)3][TaCl6] as air-stable, reddish brown needles with the space group P21/n and a = 1213.8(3), b = 1358.0(2), c = 2165.9(4) pm, β = 92.88(1)°, Z = 4. The Re atom of the cation exhibits an octahedral coordination with the phosphine ligands in meridional arrangement. The imido ligand is in trans-position to a Cl atom with a distance Re-N = 170.4(4) pm. When the reaction is carried out in toluene the dinuclear nitrido complex [Re(NTaCl5)Cl2(PMe2Ph)3] is obtained instead. The reaction of ReNCl2(PMe2Ph)3 with VCl3(THF)3 in toluene affords the threenuclear complex [Re2N2Cl4(PMe2Ph) 5]VCl3, which upon crystallization at air gives air-stable, reddish-brown crystals of [(Me2PhP)3Cl2ReN]2VOCl2. They crystallize in the monoclinic space group P21 with a = 1519.2(5), b = 1257.1(1), c = 1564.3(6) pm, β = 102.86(2)°, and Z = 2. The three-nuclear complex shows an almost linear arrangement Re≡N-V-N≡Re with distances Re-N 171(2) pm and V-N of 209(2) pm.
