High yield syntheses of new tetraruthenium carbonylates: [Ru4(CO)13]2–, [HRu4(CO)13]–, and [Ru4(CO)12]4–; a simple, high yield preparation of H2Ru4(CO)13

Abstract

The anions [Ru₄(CO)₁₃]^2– and [Ru₄(CO)₁₂]^4– are formed in high yield by the controlled reduction of Ru₃(CO)₁₂ with potassium–benzophenone and, upon subsequent protonation, lead to [HRu₄(CO)₁₃]^–, H₂Ru₄-(CO)₁₃, and H₄Ru₄(CO)₁₂ quantitatively.