cis , cis , cis -Di-chlorido-bis-( N 4 , N 4 -di-methyl-pyridin-4-amine-κ N 1 )bis-(dimethyl sulfoxide-κ S )ruthenium(II).

The structure of the title compound, [RuCl 2 (C 7 H 10 N 2 ) 2 (C 2 H 6 OS) 2 ], has monoclinic ( P 2 1 / n ) symmetry. The Ru-N distances of the coordination compound are influenced by the trans chloride or di-methyl-sulfoxide-κ S ligands. The mol-ecular structure exhibits disorder for two of the terminal methyl groups of a dimethyl sulfoxide ligand.