Abstract
1,1'-Di-formyl-ruthenocene, [Ru(C(6)H(5)O)(2)], crystallizes in the ortho-rhom-bic system in the P2(1)2(1)2(1) space group at room temperature. There are two crystallographically independent mol-ecules in the asymmetric unit. The cyclo-penta-dienyl rings have eclipsed configuration. The mol-ecules self-assemble in a two-dimensional structure by C-H⋯O and C-H⋯π inter-actions with cisoid relative orientations of the two formyl groups. The crystal studied was refined as an inversion twin.