Materials Data on PmSm by Materials Project

Abstract

SmPm is Magnesium-derived structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Sm is bonded to six equivalent Sm and six equivalent Pm atoms to form SmPm6Sm6 cuboctahedra that share corners with eighteen equivalent SmPm6Sm6 cuboctahedra, edges with six equivalent SmPm6Sm6 cuboctahedra, edges with twelve equivalent PmPm6Sm6 cuboctahedra, faces with eight equivalent SmPm6Sm6 cuboctahedra, and faces with twelve equivalent PmPm6Sm6 cuboctahedra. All Sm–Sm bond lengths are 3.65 Å. All Sm–Pm bond lengths are 3.66 Å. Pm is bonded to six equivalent Sm and six equivalent Pm atoms to form PmPm6Sm6 cuboctahedra that share corners with eighteen equivalent PmPm6Sm6 cuboctahedra, edges with six equivalent PmPm6Sm6 cuboctahedra, edges with twelve equivalent SmPm6Sm6 cuboctahedra, faces with eight equivalent PmPm6Sm6 cuboctahedra, and faces with twelve equivalent SmPm6Sm6 cuboctahedra. All Pm–Pm bond lengths are 3.65 Å.