Pu3Ho 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 Pu(1,1) and four equivalent Ho(1) atoms to form PuHo4Pu8 cuboctahedra that share corners with four equivalent Ho(1)Pu12 cuboctahedra; corners with fourteen Pu(1,1)Ho4Pu8 cuboctahedra; edges with six equivalent Ho(1)Pu12 cuboctahedra; edges with twelve Pu(1,1)Ho4Pu8 cuboctahedra; faces with four equivalent Ho(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Ho4Pu8 cuboctahedra. In the second Pu site, Pu(1) is bonded to eight Pu(1,1) and four equivalent Ho(1) atoms to form PuHo4Pu8 cuboctahedra that share corners with four equivalent Ho(1)Pu12 cuboctahedra; corners with fourteen Pu(1,1)Ho4Pu8 cuboctahedra; edges with six equivalent Ho(1)Pu12 cuboctahedra; edges with twelve Pu(1,1)Ho4Pu8 cuboctahedra; faces with four equivalent Ho(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Ho4Pu8 cuboctahedra. Ho(1) is bonded to twelve Pu(1,1) atoms to form HoPu12 cuboctahedra that share corners with six equivalent Ho(1)Pu12 cuboctahedra; corners with twelve Pu(1,1)Ho4Pu8 cuboctahedra; edges with eighteen Pu(1,1)Ho4Pu8 cuboctahedra; faces with eight equivalent Ho(1)Pu12 cuboctahedra; and faces with twelve Pu(1,1)Ho4Pu8 cuboctahedra.
Pu3Ho 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 Pu(1,1) and four equivalent Ho(1) atoms to form PuHo4Pu8 cuboctahedra that share corners with four equivalent Ho(1)Pu12 cuboctahedra; corners with fourteen Pu(1,1)Ho4Pu8 cuboctahedra; edges with six equivalent Ho(1)Pu12 cuboctahedra; edges with twelve Pu(1,1)Ho4Pu8 cuboctahedra; faces with four equivalent Ho(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Ho4Pu8 cuboctahedra. There are a spread of Pu(1)-Pu(1,1) bond distances ranging from 3.39-3.51 Å. There are two shorter (3.44 Å) and two longer (3.45 Å) Pu(1)-Ho(1) bond lengths. In the second Pu site, Pu(1) is bonded to eight Pu(1,1) and four equivalent Ho(1) atoms to form PuHo4Pu8 cuboctahedra that share corners with four equivalent Ho(1)Pu12 cuboctahedra; corners with fourteen Pu(1,1)Ho4Pu8 cuboctahedra; edges with six equivalent Ho(1)Pu12 cuboctahedra; edges with twelve Pu(1,1)Ho4Pu8 cuboctahedra; faces with four equivalent Ho(1)Pu12 cuboctahedra; and faces with sixteen Pu(1,1)Ho4Pu8 cuboctahedra. Both Pu(1)-Pu(1) bond lengths are 3.40 Å. There are two shorter (3.44 Å) and two longer (3.45 Å) Pu(1)-Ho(1) bond lengths. Ho(1) is bonded to twelve Pu(1,1) atoms to form HoPu12 cuboctahedra that share corners with six equivalent Ho(1)Pu12 cuboctahedra; corners with twelve Pu(1,1)Ho4Pu8 cuboctahedra; edges with eighteen Pu(1,1)Ho4Pu8 cuboctahedra; faces with eight equivalent Ho(1)Pu12 cuboctahedra; and faces with twelve Pu(1,1)Ho4Pu8 cuboctahedra.