Materials Data on HoTm3 by Materials Project
Tm3Ho is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Tm is bonded to eight equivalent Tm and four equivalent Ho atoms to form TmHo4Tm8 cuboctahedra that share corners with four equivalent HoTm12 cuboctahedra, corners with fourteen equivalent TmHo4Tm8 cuboctahedra, edges with six equivalent HoTm12 cuboctahedra, edges with twelve equivalent TmHo4Tm8 cuboctahedra, faces with four equivalent HoTm12 cuboctahedra, and faces with sixteen equivalent TmHo4Tm8 cuboctahedra. There are a spread of Tm–Tm bond distances ranging from 3.46–3.57 Å. There are two shorter (3.46 Å) and two longer (3.56 Å) Tm–Ho bond lengths. Ho is bonded to twelve equivalent Tm atoms to form HoTm12 cuboctahedra that share corners with six equivalent HoTm12 cuboctahedra, corners with twelve equivalent TmHo4Tm8 cuboctahedra, edges with eighteen equivalent TmHo4Tm8 cuboctahedra, faces with eight equivalent HoTm12 cuboctahedra, and faces with twelve equivalent TmHo4Tm8 cuboctahedra.