The Crystal Structure of Dimethylsulfoxidepentammineruthenium(II) Hexafluorophosphate

Abstract

The crystal structure of dimethylsulfoxidepentammineruthenium(II) hexafluorophosphate ( [Ru(NH 3 ) 5 DMSO] 2+ 2PF 6 − ) has been determined from three-dimensional X-ray data. The crystals are monoclinic, space group P2 1 /c, with four formula units in a unit cell of dimensions a = 8.805(2), b = 17.335(5), c = 12.373(2) Å, β = 94.24(2)°. The structure has been refined by full matrix least-squares methods to a final residual R of 0.054 for 1987 reflections greater than 3σ. The DMSO ligand coordinates through the sulfur atom and the S—O bond distance (1.527(7) Å) is considerably longer than that found for other sulfur–donor complexes of the ligand. The Ru—S bond distance is 2.188(3) Å.