Preparation and Structure of Ru2(µ−O2CCF3)2(CO)4(NCMe)2

Abstract

The molecular structure of Ru₂(µ-O₂CCF₃)₂(CO)₄(NCMe)₂, obtained from Ru₃(CO)₁₀(NCMe)₂ and CF₃CO₂H, or from Ru₃(CO)₁₂ and CF₃CO₂H in a CH₂Cl₂/MeCN mixture, is presented. The central Ru–Ru bond [2·683(1) Å] is bridged by the two carboxylato ligands [Ru–O (average) 2·13₃ Å]. Each ruthenium carries mutually cis CO ligands approximately trans to the Ru–O vectors and an MeCN ligand in the axial position [Ru–N (average) 2·18 Å].