NaPm3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Na(1) is bonded to twelve equivalent Pm(1) atoms to form NaPm12 cuboctahedra that share corners with twelve equivalent Na(1)Pm12 cuboctahedra, edges with twenty-four equivalent Pm(1)Na4Pm8 cuboctahedra, faces with six equivalent Na(1)Pm12 cuboctahedra, and faces with twelve equivalent Pm(1)Na4Pm8 cuboctahedra. Pm(1) is bonded to four equivalent Na(1) and eight equivalent Pm(1) atoms to form PmNa4Pm8 cuboctahedra that share corners with twelve equivalent Pm(1)Na4Pm8 cuboctahedra, edges with eight equivalent Na(1)Pm12 cuboctahedra, edges with sixteen equivalent Pm(1)Na4Pm8 cuboctahedra, faces with four equivalent Na(1)Pm12 cuboctahedra, and faces with fourteen equivalent Pm(1)Na4Pm8 cuboctahedra.
NaPm3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Na(1) is bonded to twelve equivalent Pm(1) atoms to form NaPm12 cuboctahedra that share corners with twelve equivalent Na(1)Pm12 cuboctahedra, edges with twenty-four equivalent Pm(1)Na4Pm8 cuboctahedra, faces with six equivalent Na(1)Pm12 cuboctahedra, and faces with twelve equivalent Pm(1)Na4Pm8 cuboctahedra. All Na(1)-Pm(1) bond lengths are 3.64 Å. Pm(1) is bonded to four equivalent Na(1) and eight equivalent Pm(1) atoms to form PmNa4Pm8 cuboctahedra that share corners with twelve equivalent Pm(1)Na4Pm8 cuboctahedra, edges with eight equivalent Na(1)Pm12 cuboctahedra, edges with sixteen equivalent Pm(1)Na4Pm8 cuboctahedra, faces with four equivalent Na(1)Pm12 cuboctahedra, and faces with fourteen equivalent Pm(1)Na4Pm8 cuboctahedra. All Pm(1)-Pm(1) bond lengths are 3.64 Å.