In the structure of the title compound (systematic name: {(4-chlorophenyl)[2-(2-pyridyl­methyl­idene-κN)­hy­dra­zono-κN²]methanolato-κO}­di­oxo­vana­dium(V)), [VO₂(C₁₃H₉ClN₃O)], the asymmetric unit contains three independent but geometrically similar mol­ecules. The metal centre has a distorted trigonal bipyramidal N₂O₃ coordination sphere. The planar monoanionic N,N,O-donor ligand occupies one equatorial and two axial positions, the remaining two equatorial positions being occupied by the two oxo groups.

In the title complex, [RuCl₂(C₇H₇NO)(C₂H₆OS)₂], the metal ion is at the centre of a distorted octahedral NOCl₂S₂ coordination sphere. The neutral 2-acetyl­pyridine ligand binds to the metal ion through the pyridine N and carbonyl O atoms, forming a five-membered chelate ring. The monodentate S-coordinating di­methyl sulfoxide mol­ecules are mutually cis, and the two remaining positions in the coordination sphere are occupied by two mutually trans Cl⁻ ions.