ChemInform Abstract: The Heteronuclear Cluster Chemistry of the Group 1B Metals. Part 3. Synthesis, Structures, and Chemical Properties of the Trimetallic Hexanuclear Group 1B Metal Cluster Compounds (MM′Ru4(μ3-H)2(CO)12(PPh3)2) (M: Cu, M′: Ag or Au; M: Ag, M′: Au). X-Ray Crystal Structure of the Complex (AgCuRu4(μ3-H)2(CO)12(PPh3)2)·CH2Cl2.

ChemInform Abstract

The novel trimetallic clusters (IV) are prepared in the 1:1:1 molar reaction shown in the scheme. The structure of the title complex (IVa) is determined by a single-crystal X-ray diffraction study (space group P1, Z=2). IR, ¹H, ¹³C and ³¹P NMR spectroscopic data demonstrate that (IVb) and (IVc) adopt structures similar to that of (IVa). It is shown that a coinage metal site preference exists. This allows an alternative synthetic route to (IV) in 70-80% yield by group 1B metal exchange reactions (conditions tabulated).