Synthesis of metal carbonyl hydrides from metal carbonyls and hydrogen at atmospheric pressure

Abstract

The transition metal carbonyl hydrides H₃Re₃(CO)₁₂, H₄Re₄(CO)₁₂, H₄Ru₄(CO)₁₂, and H₄Os₄(CO)₁₂ have been formed in high yields and purity by treatment of the corresponding metal carbonyls [Re₂(CO)₁₀, Ru₃(CO)₁₂, and Os₃(CO)₁₂] at temperatures of 90–170° in hydrocarbon solvents with hydrogen at atmospheric pressure; similar conditions convert H₂Ru₄(CO)₁₃ into H₄Ru₄(CO)₁₂ and H₂FeRu₃(CO)₁₃ into H₄FeRu₃(CO)₁₂, a new but unstable species.