New Water-Soluble Ruthenium(II) and Osmium(II) Hydroxo Carbonyl Complexes

A high-yield procedure is described for the preparation, from [M(CO) 3 Cl 2 ] 2 (M = Ru, Os) and aqueous NaOH, of the new water-soluble and air-stable species [Ru(CO) 2 Cl(OH)] n, [Ru(CO) 2 (OH) 2 ] n, [Os(CO) 3 Cl(OH)] 2, and [Os(CO) 3 (OH) 2 ] x ( x = 2 or n ).