Pu3Th is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded to eight equivalent Pu(1) and four equivalent Th(1) atoms to form PuPu8Th4 cuboctahedra that share corners with four equivalent Th(1)Pu12 cuboctahedra; corners with fourteen equivalent Pu(1)Pu8Th4 cuboctahedra; edges with six equivalent Th(1)Pu12 cuboctahedra; edges with twelve equivalent Pu(1)Pu8Th4 cuboctahedra; faces with four equivalent Th(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Pu8Th4 cuboctahedra. In the second Pu site, Pu(1) is bonded to eight equivalent Pu(1) and four equivalent Th(1) atoms to form PuPu8Th4 cuboctahedra that share corners with four equivalent Th(1)Pu12 cuboctahedra; corners with fourteen Pu(1,1)Pu8Th4 cuboctahedra; edges with six equivalent Th(1)Pu12 cuboctahedra; edges with twelve equivalent Pu(1)Pu8Th4 cuboctahedra; faces with four equivalent Th(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Pu8Th4 cuboctahedra. Th(1) is bonded to twelve Pu(1,1) atoms to form ThPu12 cuboctahedra that share corners with six equivalent Th(1)Pu12 cuboctahedra; corners with twelve Pu(1,1)Pu8Th4 cuboctahedra; edges with eighteen Pu(1,1)Pu8Th4 cuboctahedra; faces with eight equivalent Th(1)Pu12 cuboctahedra; and faces with twelve Pu(1,1)Pu8Th4 cuboctahedra.
Pu3Th is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Pu sites. In the first Pu site, Pu(1) is bonded to eight equivalent Pu(1) and four equivalent Th(1) atoms to form PuPu8Th4 cuboctahedra that share corners with four equivalent Th(1)Pu12 cuboctahedra; corners with fourteen equivalent Pu(1)Pu8Th4 cuboctahedra; edges with six equivalent Th(1)Pu12 cuboctahedra; edges with twelve equivalent Pu(1)Pu8Th4 cuboctahedra; faces with four equivalent Th(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Pu8Th4 cuboctahedra. There are a spread of Pu(1)-Pu(1) bond distances ranging from 3.35-3.51 Å. There are two shorter (3.39 Å) and two longer (3.45 Å) Pu(1)-Th(1) bond lengths. In the second Pu site, Pu(1) is bonded to eight equivalent Pu(1) and four equivalent Th(1) atoms to form PuPu8Th4 cuboctahedra that share corners with four equivalent Th(1)Pu12 cuboctahedra; corners with fourteen Pu(1,1)Pu8Th4 cuboctahedra; edges with six equivalent Th(1)Pu12 cuboctahedra; edges with twelve equivalent Pu(1)Pu8Th4 cuboctahedra; faces with four equivalent Th(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Pu8Th4 cuboctahedra. There are a spread of Pu(1)-Pu(1) bond distances ranging from 3.35-3.51 Å. There are two shorter (3.39 Å) and two longer (3.45 Å) Pu(1)-Th(1) bond lengths. Th(1) is bonded to twelve Pu(1,1) atoms to form ThPu12 cuboctahedra that share corners with six equivalent Th(1)Pu12 cuboctahedra; corners with twelve Pu(1,1)Pu8Th4 cuboctahedra; edges with eighteen Pu(1,1)Pu8Th4 cuboctahedra; faces with eight equivalent Th(1)Pu12 cuboctahedra; and faces with twelve Pu(1,1)Pu8Th4 cuboctahedra.