Crystal Structure of a Lantern-type Diruthenium(II,III) Complex with Axial Thiocyanato and DMF Ligands, [Ru₂(O₂CCMe₃)₄(NCS)(DMF)]

Abstract

The title compound of a lantern-type ruthenium(II,III) dinuclear complex, [Ru₂(O₂CCMe₃)₄(NCS)(DMF)], was isolated and the crystal structure was determined by the single-crystal X-ray diffraction method at 293 K. It crystallizes in the monoclinc space group P2₁/n with a = 11.549(6)Å, b = 9.849(5)Å, c = 14.250(8)Å, β = 91.898(7)°, V = 1619.9(15)ų, D_x = 1.513 g/cm³, and Z = 2. The R1 [I > 2σ(I)] and wR2 (all data) values are 0.0389 and 0.0916, respectively, for all 3860 independent reflections. The axial sites of the dinuclear core are occupied by NCS⁻ and DMF ligands with distances of Ru–N_ax (NCS⁻) = 2.29(3)Å and Ru–O_ax (DMF) = 2.201(19)Å, respectively. The Ru–Ru distance is 2.2713(10)Å, of which the value is in the range of those for the other lantern-type diruthenium(II,III) tetracarboxylate complexes.