Some AB3 compounds of the transitiom metals

Crystal structure data for fifteen AB/sub 3/ compounds of the transition metals were studied. The alloys were made by arc melting 3 to 5 of the elements in a water-cooled copper crucible. AB/sub 3/ compounds with the Cu/sub 3/Au- structure, Ll/sub 2/, space group Pm/sub 3/m included: ScRh/sub 3/, ScPd/sub 3/, ScPt/sub 3/, YPd/sub 3/, YPt/sub 3/, LaPd/sub 3/, HoPd/sub 3/, HoPt/sub 3/, ThRh/ sub 3/, URh/sub 3/, and Ulr/sub 3/. AB /sub 3/ compounds with close-packed ordered structures included ThPd/sub 3/, VPd/sub 3/, VPt/sub 3/, and HfAl/sub 3/. (M.C.G.)