Fixierung von Harnstoffen und Thioharnstoffen auf dreikernigen Ruthenium‐Clustern: Synthese und Molekülstruktur von (μ₂‐H)Ru₃(CO)₉(μ₃‐NPhCSNHPh)

Abstract

Fixation of Ureas and Thioureas on Trinuclear Ruthenium Clusters: Synthesis and Molecular Structure of (μ 2 ‐H)Ru 3 (CO) 9 (μ 3 ‐NPhCSNHPh) Trinuclear clusters of the type (μ 2 ‐H)Ru 3 (CO) 9 [μ 3 ‐NRC(E)NHR] (EO, S; RH, Me, Ph) have been synthesized from Ru 3 (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 μ 2 ‐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.