In the title compound, [Ru2(C5H5)2(C13H8O)], the Ru—C bond lengths in the two ruthenocenyl moieties are in the range of 2.155 (4)–2.196 (3) Å. Both cyclopentadienyl (Cp) rings are planar and parallel with staggered (18.6 °) and eclipsed (3.1°) conformations between the mutual orientations of rings in the independent sandwiches of each ruthenocenyl molecule. In the crystal, there are intermolecular C—H...O hydrogen bonds between Cp carbon donor atoms and the cyclopropenone O atom of adjacent molecules, forming R22(14) and R66(38) motifs along the b and c axes.
