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

The title compound of a lantern-type ruthenium(II,III) dinuclear complex, [Ru 2 (O 2 CCMe 3 ) 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 P 2 1 /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)Å 3 , D x = 1.513 g/cm 3 , and Z = 2. The R 1 [ I > 2 σ ( I )] and wR 2 (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.