Pa3Tm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Pa(1) is bonded to eight equivalent Pa(1) and four equivalent Tm(1) atoms to form PaTm4Pa8 cuboctahedra that share corners with twelve equivalent Pa(1)Tm4Pa8 cuboctahedra, edges with eight equivalent Tm(1)Pa12 cuboctahedra, edges with sixteen equivalent Pa(1)Tm4Pa8 cuboctahedra, faces with four equivalent Tm(1)Pa12 cuboctahedra, and faces with fourteen equivalent Pa(1)Tm4Pa8 cuboctahedra. Tm(1) is bonded to twelve equivalent Pa(1) atoms to form TmPa12 cuboctahedra that share corners with twelve equivalent Tm(1)Pa12 cuboctahedra, edges with twenty-four equivalent Pa(1)Tm4Pa8 cuboctahedra, faces with six equivalent Tm(1)Pa12 cuboctahedra, and faces with twelve equivalent Pa(1)Tm4Pa8 cuboctahedra.
Pa3Tm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Pa(1) is bonded to eight equivalent Pa(1) and four equivalent Tm(1) atoms to form PaTm4Pa8 cuboctahedra that share corners with twelve equivalent Pa(1)Tm4Pa8 cuboctahedra, edges with eight equivalent Tm(1)Pa12 cuboctahedra, edges with sixteen equivalent Pa(1)Tm4Pa8 cuboctahedra, faces with four equivalent Tm(1)Pa12 cuboctahedra, and faces with fourteen equivalent Pa(1)Tm4Pa8 cuboctahedra. All Pa(1)-Pa(1) bond lengths are 3.33 Å. All Pa(1)-Tm(1) bond lengths are 3.33 Å. Tm(1) is bonded to twelve equivalent Pa(1) atoms to form TmPa12 cuboctahedra that share corners with twelve equivalent Tm(1)Pa12 cuboctahedra, edges with twenty-four equivalent Pa(1)Tm4Pa8 cuboctahedra, faces with six equivalent Tm(1)Pa12 cuboctahedra, and faces with twelve equivalent Pa(1)Tm4Pa8 cuboctahedra.