Materials Data on PmSm3 by Materials Project

Abstract

Sm3Pm is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sm is bonded to eight equivalent Sm and four equivalent Pm atoms to form SmPm4Sm8 cuboctahedra that share corners with twelve equivalent SmPm4Sm8 cuboctahedra, edges with eight equivalent PmSm12 cuboctahedra, edges with sixteen equivalent SmPm4Sm8 cuboctahedra, faces with four equivalent PmSm12 cuboctahedra, and faces with fourteen equivalent SmPm4Sm8 cuboctahedra. All Sm–Sm bond lengths are 3.64 Å. All Sm–Pm bond lengths are 3.64 Å. Pm is bonded to twelve equivalent Sm atoms to form PmSm12 cuboctahedra that share corners with twelve equivalent PmSm12 cuboctahedra, edges with twenty-four equivalent SmPm4Sm8 cuboctahedra, faces with six equivalent PmSm12 cuboctahedra, and faces with twelve equivalent SmPm4Sm8 cuboctahedra.