New alloys containing platinum group metals are useful for a variety of industrial applications. This chart shows the binary systems with platinum group metals that Hart et al. considered. A circle indicates the authors’ calculations confirming experimental findings, with light grey meaning the alloy forms a stable compound and dark grey meaning no stable compound forms. Yellow circles identify predicted compounds that are more stable than the reported experimental disordered alloys. The red squares indicate the 28 new compounds Hart et al. found.