PuNd3 is beta-derived structured and crystallizes in the hexagonal P-6m2 space group. Pu(1) is bonded to six equivalent Pu(1) and six equivalent Nd(2) atoms to form PuNd6Pu6 cuboctahedra that share corners with six equivalent Pu(1)Nd6Pu6 cuboctahedra, corners with six equivalent Nd(1)Nd12 cuboctahedra, edges with six equivalent Pu(1)Nd6Pu6 cuboctahedra, edges with six equivalent Nd(1)Nd12 cuboctahedra, edges with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra, faces with six equivalent Pu(1)Nd6Pu6 cuboctahedra, and faces with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to six equivalent Nd(1) and six equivalent Nd(2) atoms to form NdNd12 cuboctahedra that share corners with six equivalent Pu(1)Nd6Pu6 cuboctahedra, corners with six equivalent Nd(1)Nd12 cuboctahedra, edges with six equivalent Pu(1)Nd6Pu6 cuboctahedra, edges with six equivalent Nd(1)Nd12 cuboctahedra, edges with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra, faces with six equivalent Nd(1)Nd12 cuboctahedra, and faces with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra. In the second Nd site, Nd(2) is bonded to three equivalent Pu(1), three equivalent Nd(1), and six equivalent Nd(2) atoms to form distorted NdNd9Pu3 cuboctahedra that share corners with eighteen equivalent Nd(2)Nd9Pu3 cuboctahedra, edges with six equivalent Pu(1)Nd6Pu6 cuboctahedra, edges with six equivalent Nd(1)Nd12 cuboctahedra, edges with six equivalent Nd(2)Nd9Pu3 cuboctahedra, faces with six equivalent Pu(1)Nd6Pu6 cuboctahedra, faces with six equivalent Nd(1)Nd12 cuboctahedra, and faces with eight equivalent Nd(2)Nd9Pu3 cuboctahedra.
PuNd3 is beta-derived structured and crystallizes in the hexagonal P-6m2 space group. Pu(1) is bonded to six equivalent Pu(1) and six equivalent Nd(2) atoms to form PuNd6Pu6 cuboctahedra that share corners with six equivalent Pu(1)Nd6Pu6 cuboctahedra, corners with six equivalent Nd(1)Nd12 cuboctahedra, edges with six equivalent Pu(1)Nd6Pu6 cuboctahedra, edges with six equivalent Nd(1)Nd12 cuboctahedra, edges with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra, faces with six equivalent Pu(1)Nd6Pu6 cuboctahedra, and faces with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra. All Pu(1)-Pu(1) bond lengths are 3.46 Å. All Pu(1)-Nd(2) bond lengths are 3.41 Å. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to six equivalent Nd(1) and six equivalent Nd(2) atoms to form NdNd12 cuboctahedra that share corners with six equivalent Pu(1)Nd6Pu6 cuboctahedra, corners with six equivalent Nd(1)Nd12 cuboctahedra, edges with six equivalent Pu(1)Nd6Pu6 cuboctahedra, edges with six equivalent Nd(1)Nd12 cuboctahedra, edges with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra, faces with six equivalent Nd(1)Nd12 cuboctahedra, and faces with twelve equivalent Nd(2)Nd9Pu3 cuboctahedra. All Nd(1)-Nd(1) bond lengths are 3.46 Å. All Nd(1)-Nd(2) bond lengths are 3.67 Å. In the second Nd site, Nd(2) is bonded to three equivalent Pu(1), three equivalent Nd(1), and six equivalent Nd(2) atoms to form distorted NdNd9Pu3 cuboctahedra that share corners with eighteen equivalent Nd(2)Nd9Pu3 cuboctahedra, edges with six equivalent Pu(1)Nd6Pu6 cuboctahedra, edges with six equivalent Nd(1)Nd12 cuboctahedra, edges with six equivalent Nd(2)Nd9Pu3 cuboctahedra, faces with six equivalent Pu(1)Nd6Pu6 cuboctahedra, faces with six equivalent Nd(1)Nd12 cuboctahedra, and faces with eight equivalent Nd(2)Nd9Pu3 cuboctahedra. All Nd(2)-Nd(2) bond lengths are 3.46 Å.