Materials Data on SmTm3 by Materials Project
Tm3Sm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tm is bonded to eight equivalent Tm and four equivalent Sm atoms to form TmSm4Tm8 cuboctahedra that share corners with twelve equivalent TmSm4Tm8 cuboctahedra, edges with eight equivalent SmTm12 cuboctahedra, edges with sixteen equivalent TmSm4Tm8 cuboctahedra, faces with four equivalent SmTm12 cuboctahedra, and faces with fourteen equivalent TmSm4Tm8 cuboctahedra. All Tm–Tm bond lengths are 3.52 Å. All Tm–Sm bond lengths are 3.52 Å. Sm is bonded to twelve equivalent Tm atoms to form SmTm12 cuboctahedra that share corners with twelve equivalent SmTm12 cuboctahedra, edges with twenty-four equivalent TmSm4Tm8 cuboctahedra, faces with six equivalent SmTm12 cuboctahedra, and faces with twelve equivalent TmSm4Tm8 cuboctahedra.