Ba3Pm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ba(1) is bonded to eight equivalent Ba(1) and four equivalent Pm(1) atoms to form BaBa8Pm4 cuboctahedra that share corners with twelve equivalent Ba(1)Ba8Pm4 cuboctahedra, edges with eight equivalent Pm(1)Ba12 cuboctahedra, edges with sixteen equivalent Ba(1)Ba8Pm4 cuboctahedra, faces with four equivalent Pm(1)Ba12 cuboctahedra, and faces with fourteen equivalent Ba(1)Ba8Pm4 cuboctahedra. Pm(1) is bonded to twelve equivalent Ba(1) atoms to form PmBa12 cuboctahedra that share corners with twelve equivalent Pm(1)Ba12 cuboctahedra, edges with twenty-four equivalent Ba(1)Ba8Pm4 cuboctahedra, faces with six equivalent Pm(1)Ba12 cuboctahedra, and faces with twelve equivalent Ba(1)Ba8Pm4 cuboctahedra.
Ba3Pm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ba(1) is bonded to eight equivalent Ba(1) and four equivalent Pm(1) atoms to form BaBa8Pm4 cuboctahedra that share corners with twelve equivalent Ba(1)Ba8Pm4 cuboctahedra, edges with eight equivalent Pm(1)Ba12 cuboctahedra, edges with sixteen equivalent Ba(1)Ba8Pm4 cuboctahedra, faces with four equivalent Pm(1)Ba12 cuboctahedra, and faces with fourteen equivalent Ba(1)Ba8Pm4 cuboctahedra. All Ba(1)-Ba(1) bond lengths are 4.20 Å. All Ba(1)-Pm(1) bond lengths are 4.20 Å. Pm(1) is bonded to twelve equivalent Ba(1) atoms to form PmBa12 cuboctahedra that share corners with twelve equivalent Pm(1)Ba12 cuboctahedra, edges with twenty-four equivalent Ba(1)Ba8Pm4 cuboctahedra, faces with six equivalent Pm(1)Ba12 cuboctahedra, and faces with twelve equivalent Ba(1)Ba8Pm4 cuboctahedra.