Materials Data on Ac3Cr by Materials Project

Abstract

Ac3Cr is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ac is bonded to eight equivalent Ac and four equivalent Cr atoms to form distorted AcAc8Cr4 cuboctahedra that share corners with twelve equivalent AcAc8Cr4 cuboctahedra, edges with eight equivalent CrAc12 cuboctahedra, edges with sixteen equivalent AcAc8Cr4 cuboctahedra, faces with four equivalent CrAc12 cuboctahedra, and faces with fourteen equivalent AcAc8Cr4 cuboctahedra. All Ac–Ac bond lengths are 3.76 Å. All Ac–Cr bond lengths are 3.76 Å. Cr is bonded to twelve equivalent Ac atoms to form CrAc12 cuboctahedra that share corners with twelve equivalent CrAc12 cuboctahedra, edges with twenty-four equivalent AcAc8Cr4 cuboctahedra, faces with six equivalent CrAc12 cuboctahedra, and faces with twelve equivalent AcAc8Cr4 cuboctahedra.