HoNd3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Ho(1) is bonded to twelve equivalent Nd(1) atoms to form HoNd12 cuboctahedra that share corners with six equivalent Ho(1)Nd12 cuboctahedra, corners with twelve equivalent Nd(1)Nd8Ho4 cuboctahedra, edges with eighteen equivalent Nd(1)Nd8Ho4 cuboctahedra, faces with eight equivalent Ho(1)Nd12 cuboctahedra, and faces with twelve equivalent Nd(1)Nd8Ho4 cuboctahedra. Nd(1) is bonded to four equivalent Ho(1) and eight equivalent Nd(1) atoms to form NdNd8Ho4 cuboctahedra that share corners with four equivalent Ho(1)Nd12 cuboctahedra, corners with fourteen equivalent Nd(1)Nd8Ho4 cuboctahedra, edges with six equivalent Ho(1)Nd12 cuboctahedra, edges with twelve equivalent Nd(1)Nd8Ho4 cuboctahedra, faces with four equivalent Ho(1)Nd12 cuboctahedra, and faces with sixteen equivalent Nd(1)Nd8Ho4 cuboctahedra.
HoNd3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Ho(1) is bonded to twelve equivalent Nd(1) atoms to form HoNd12 cuboctahedra that share corners with six equivalent Ho(1)Nd12 cuboctahedra, corners with twelve equivalent Nd(1)Nd8Ho4 cuboctahedra, edges with eighteen equivalent Nd(1)Nd8Ho4 cuboctahedra, faces with eight equivalent Ho(1)Nd12 cuboctahedra, and faces with twelve equivalent Nd(1)Nd8Ho4 cuboctahedra. There are six shorter (3.62 Å) and six longer (3.71 Å) Ho(1)-Nd(1) bond lengths. Nd(1) is bonded to four equivalent Ho(1) and eight equivalent Nd(1) atoms to form NdNd8Ho4 cuboctahedra that share corners with four equivalent Ho(1)Nd12 cuboctahedra, corners with fourteen equivalent Nd(1)Nd8Ho4 cuboctahedra, edges with six equivalent Ho(1)Nd12 cuboctahedra, edges with twelve equivalent Nd(1)Nd8Ho4 cuboctahedra, faces with four equivalent Ho(1)Nd12 cuboctahedra, and faces with sixteen equivalent Nd(1)Nd8Ho4 cuboctahedra. There are a spread of Nd(1)-Nd(1) bond distances ranging from 3.65-3.75 Å.