Materials Data on Pm3Sm by Materials Project

Abstract

SmPm3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sm is bonded to twelve equivalent Pm atoms to form SmPm12 cuboctahedra that share corners with twelve equivalent SmPm12 cuboctahedra, edges with twenty-four equivalent PmPm8Sm4 cuboctahedra, faces with six equivalent SmPm12 cuboctahedra, and faces with twelve equivalent PmPm8Sm4 cuboctahedra. All Sm–Pm bond lengths are 3.65 Å. Pm is bonded to four equivalent Sm and eight equivalent Pm atoms to form PmPm8Sm4 cuboctahedra that share corners with twelve equivalent PmPm8Sm4 cuboctahedra, edges with eight equivalent SmPm12 cuboctahedra, edges with sixteen equivalent PmPm8Sm4 cuboctahedra, faces with four equivalent SmPm12 cuboctahedra, and faces with fourteen equivalent PmPm8Sm4 cuboctahedra. All Pm–Pm bond lengths are 3.65 Å.