Materials Data on Pm3Si by Materials Project

Abstract

Pm3Si is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pm is bonded to eight equivalent Pm and four equivalent Si atoms to form distorted PmPm8Si4 cuboctahedra that share corners with twelve equivalent PmPm8Si4 cuboctahedra, edges with eight equivalent SiPm12 cuboctahedra, edges with sixteen equivalent PmPm8Si4 cuboctahedra, faces with four equivalent SiPm12 cuboctahedra, and faces with fourteen equivalent PmPm8Si4 cuboctahedra. All Pm–Pm bond lengths are 3.36 Å. All Pm–Si bond lengths are 3.36 Å. Si is bonded to twelve equivalent Pm atoms to form SiPm12 cuboctahedra that share corners with twelve equivalent SiPm12 cuboctahedra, edges with twenty-four equivalent PmPm8Si4 cuboctahedra, faces with six equivalent SiPm12 cuboctahedra, and faces with twelve equivalent PmPm8Si4 cuboctahedra.