Materials Data on KTm by Materials Project
KTm is alpha Samarium-derived structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. K is bonded to six equivalent K and six equivalent Tm atoms to form KK6Tm6 cuboctahedra that share corners with eighteen equivalent KK6Tm6 cuboctahedra, edges with six equivalent KK6Tm6 cuboctahedra, edges with twelve equivalent TmK6Tm6 cuboctahedra, faces with eight equivalent KK6Tm6 cuboctahedra, and faces with twelve equivalent TmK6Tm6 cuboctahedra. All K–K bond lengths are 3.60 Å. All K–Tm bond lengths are 4.14 Å. Tm is bonded to six equivalent K and six equivalent Tm atoms to form TmK6Tm6 cuboctahedra that share corners with eighteen equivalent TmK6Tm6 cuboctahedra, edges with six equivalent TmK6Tm6 cuboctahedra, edges with twelve equivalent KK6Tm6 cuboctahedra, faces with eight equivalent TmK6Tm6 cuboctahedra, and faces with twelve equivalent KK6Tm6 cuboctahedra. All Tm–Tm bond lengths are 3.60 Å.