Dichlororuthenium tricarbonyl dimer is an organoruthenium compound with the formula [RuCl<sub>2</sub>(CO)<sub>3</sub>]<sub>2</sub>. A yellow solid, the molecule features a pair of octahedral Ru centers bridged by a pair of chloride ligands. The complex is a common starting material in ruthenium chemistry.
Dichlororuthenium tricarbonyl dimer arises by the carbonylation of a hot solution of ruthenium trichloride in methoxyethanol.
The complex exists in equilibrium with the polymer:
It reacts with potassium hydroxide in alcohol to give triruthenium dodecacarbonyl.
Dichlororuthenium tricarbonyl dimer reacts with glycine to give tricarbonylchloroglycinatoruthenium(II).