FIXATION OF UREAS AND THIOUREAS ON TRINUCLEAR RUTHENIUM CLUSTERS - SYNTHESIS AND MOLECULAR-STRUCTURE OF (MU-2-H)RU3(CO)9-(MU-3-NPHCSNHPH)

Fixation of Ureas and Thioureas on Trinuclear Ruthenium Clusters: Synthesis and Molecular Structure of (μ2‐H)Ru3(CO)9(μ3‐NPhCSNHPh) Trinuclear clusters of the type (μ2‐H)Ru3(CO)9[μ3‐NRC(E)NHR] (EO, S; RH, Me, Ph) have been synthesized from Ru3(CO)12 and the corresponding ureas and thioureas, respectively. The X‐ray crystal structure analysis of the N,N'‐diphenylthiourea derivative 3 reveals the thiourea moiety to be coordinated to the trinuclear metal framework by the sulfur atom in a μ2‐like fashion and by one of the nitrogen atoms acting as a terminal ligand. While the SCN backbone has remained intact on the cluster site, one of the hydrogen substituents has been transferred from the coordinated nitrogen to the metal framework. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim