Materials Data on Pr3Np by Materials Project
NpPr3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Pr atoms to form NpPr12 cuboctahedra that share corners with twelve equivalent NpPr12 cuboctahedra, edges with twenty-four equivalent PrPr8Np4 cuboctahedra, faces with six equivalent NpPr12 cuboctahedra, and faces with twelve equivalent PrPr8Np4 cuboctahedra. All Np–Pr bond lengths are 3.64 Å. Pr is bonded to four equivalent Np and eight equivalent Pr atoms to form PrPr8Np4 cuboctahedra that share corners with twelve equivalent PrPr8Np4 cuboctahedra, edges with eight equivalent NpPr12 cuboctahedra, edges with sixteen equivalent PrPr8Np4 cuboctahedra, faces with four equivalent NpPr12 cuboctahedra, and faces with fourteen equivalent PrPr8Np4 cuboctahedra. All Pr–Pr bond lengths are 3.64 Å.