[1-tert-Butyl-3-(pyridin-2-ylmethyl-κN)imidazol-2-yl-idene-κC]carbonyl-dichlorido(dimethyl sulfoxide-κS)ruthenium(II).

In the title complex, [RuCl(2)(C(13)H(17)N(3))(C(2)H(6)OS)(CO)], the coordination environment around the Ru atom is slightly distorted octa-hedral. The Cl atoms are mutually trans to the dimethyl sulfoxide ligand and the imidazole carbene C atom, respectively. The carbonyl ligand is located trans to the pyridine N atom.