La3Hf is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. La(1) is bonded to eight equivalent La(1) and four equivalent Hf(1) atoms to form LaLa8Hf4 cuboctahedra that share corners with twelve equivalent La(1)La8Hf4 cuboctahedra, edges with eight equivalent Hf(1)La12 cuboctahedra, edges with sixteen equivalent La(1)La8Hf4 cuboctahedra, faces with four equivalent Hf(1)La12 cuboctahedra, and faces with fourteen equivalent La(1)La8Hf4 cuboctahedra. Hf(1) is bonded to twelve equivalent La(1) atoms to form HfLa12 cuboctahedra that share corners with twelve equivalent Hf(1)La12 cuboctahedra, edges with twenty-four equivalent La(1)La8Hf4 cuboctahedra, faces with six equivalent Hf(1)La12 cuboctahedra, and faces with twelve equivalent La(1)La8Hf4 cuboctahedra.
La3Hf is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. La(1) is bonded to eight equivalent La(1) and four equivalent Hf(1) atoms to form LaLa8Hf4 cuboctahedra that share corners with twelve equivalent La(1)La8Hf4 cuboctahedra, edges with eight equivalent Hf(1)La12 cuboctahedra, edges with sixteen equivalent La(1)La8Hf4 cuboctahedra, faces with four equivalent Hf(1)La12 cuboctahedra, and faces with fourteen equivalent La(1)La8Hf4 cuboctahedra. All La(1)-La(1) bond lengths are 3.57 Å. All La(1)-Hf(1) bond lengths are 3.57 Å. Hf(1) is bonded to twelve equivalent La(1) atoms to form HfLa12 cuboctahedra that share corners with twelve equivalent Hf(1)La12 cuboctahedra, edges with twenty-four equivalent La(1)La8Hf4 cuboctahedra, faces with six equivalent Hf(1)La12 cuboctahedra, and faces with twelve equivalent La(1)La8Hf4 cuboctahedra.