Synthesis and characterization of the bimetallic polymers [MS4Ag2(Hmimt)2]n (where M = Mo or W, Hmimt = 1-methylimidazoline-2(3H)-thione): crystal structures of [WS4Ag2(Hmimt)2]n and [Ag2I2(Hmimt)]n

The polymeric sheet structure of [WS4Ag2(Hmimt)2]n is the first example of a complex in which a tetrathiometalate coordinates in a monodentate fashion to another metal. Silver is in two very different coordination environments, one with only [WS4]2− ligands and the other with both bridging and terminal thione ligands as well as the monodentate [WS4]2−.