Synthesis and structure of cluster compounds containing 2,2 '-bipyridine as ligand

The cluster compounds [MOS3Cu3X(bipy)(2)] (M = Mo, W; X = Br, I) were prepared by reactions of (NH4)(2)MOS3. CuX, and bipy at room temperature and characterized by IR and elemental analyses. The structure of [MoOS3Cu3I(bipy)(2)] was determined by single crystal X-ray diffraction revealing that the compound consists of a nest-shaped core. The Mo atom is tetrahedrally coordinated by three S atoms and one terminal O atom. There are two types of copper atoms in the MoOS3Cu3 aggregate: two copper atoms are tetrahedrally coordinated and another copper atom is trigonally coordinated.