Materials Data on PmTm by Materials Project
TmPm crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Tm is bonded to six equivalent Tm and six equivalent Pm atoms to form TmPm6Tm6 cuboctahedra that share corners with eighteen equivalent TmPm6Tm6 cuboctahedra, edges with six equivalent TmPm6Tm6 cuboctahedra, edges with twelve equivalent PmPm6Tm6 cuboctahedra, faces with eight equivalent TmPm6Tm6 cuboctahedra, and faces with twelve equivalent PmPm6Tm6 cuboctahedra. All Tm–Tm bond lengths are 3.61 Å. All Tm–Pm bond lengths are 3.57 Å. Pm is bonded to six equivalent Tm and six equivalent Pm atoms to form PmPm6Tm6 cuboctahedra that share corners with eighteen equivalent PmPm6Tm6 cuboctahedra, edges with six equivalent PmPm6Tm6 cuboctahedra, edges with twelve equivalent TmPm6Tm6 cuboctahedra, faces with eight equivalent PmPm6Tm6 cuboctahedra, and faces with twelve equivalent TmPm6Tm6 cuboctahedra. All Pm–Pm bond lengths are 3.61 Å.