PuTh is alpha La-derived structured and crystallizes in the trigonal R-3m space group. Pu(1) is bonded to six equivalent Pu(1) and six equivalent Th(1) atoms to form PuPu6Th6 cuboctahedra that share corners with twelve equivalent Pu(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Pu(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Th(1)Pu6Th6 cuboctahedra, faces with six equivalent Pu(1)Pu6Th6 cuboctahedra, and faces with twelve equivalent Th(1)Pu6Th6 cuboctahedra. Th(1) is bonded to six equivalent Pu(1) and six equivalent Th(1) atoms to form ThPu6Th6 cuboctahedra that share corners with twelve equivalent Th(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Pu(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Th(1)Pu6Th6 cuboctahedra, faces with six equivalent Th(1)Pu6Th6 cuboctahedra, and faces with twelve equivalent Pu(1)Pu6Th6 cuboctahedra.
PuTh is alpha La-derived structured and crystallizes in the trigonal R-3m space group. Pu(1) is bonded to six equivalent Pu(1) and six equivalent Th(1) atoms to form PuPu6Th6 cuboctahedra that share corners with twelve equivalent Pu(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Pu(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Th(1)Pu6Th6 cuboctahedra, faces with six equivalent Pu(1)Pu6Th6 cuboctahedra, and faces with twelve equivalent Th(1)Pu6Th6 cuboctahedra. All Pu(1)-Pu(1) bond lengths are 3.49 Å. All Pu(1)-Th(1) bond lengths are 3.45 Å. Th(1) is bonded to six equivalent Pu(1) and six equivalent Th(1) atoms to form ThPu6Th6 cuboctahedra that share corners with twelve equivalent Th(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Pu(1)Pu6Th6 cuboctahedra, edges with twelve equivalent Th(1)Pu6Th6 cuboctahedra, faces with six equivalent Th(1)Pu6Th6 cuboctahedra, and faces with twelve equivalent Pu(1)Pu6Th6 cuboctahedra. All Th(1)-Th(1) bond lengths are 3.49 Å.