Cluster chemistry. VI. Reactions of Ru₃(CO)₁₁(CNBu^t) with hydrogen

Abstract

The reaction between Ru₃(CO)₁₁(CNBu^t) and hydrogen affords the μ3-formimidoyl complex Hru₃(μ3-HCNBu^t)(CO)₉ (2) as the major product; also formed are Hru₃(μ-HCNBu^t)(CO)₈- (CNBu^t), and the tetranuclear clusters H₄Ru₄(CO)_12-n(CNBu^t)_n (n = 0, 1 and 2). Hydrogenation of Ru₃(CO)₁₀(CNBU^t)₂ gives higher yields of HRu₃(μ-HCNBu^t)(C0)₈(CNBu^t) and H₄Ru₄(CO)_10-(CNBu^t)_2. Reactions between H₄Ru₄(CO)₁₂ and CNBu^t to give H₄Ru₄(CO)_12-n(CNBu^t)_n. (n = 1, 2 and 4) are also described.