Materials Data on AlCu3 by Materials Project

Abstract

Cu3Al is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Cu is bonded to eight equivalent Cu and four equivalent Al atoms to form CuAl4Cu8 cuboctahedra that share corners with twelve equivalent CuAl4Cu8 cuboctahedra, edges with eight equivalent AlCu12 cuboctahedra, edges with sixteen equivalent CuAl4Cu8 cuboctahedra, faces with four equivalent AlCu12 cuboctahedra, and faces with fourteen equivalent CuAl4Cu8 cuboctahedra. All Cu–Cu bond lengths are 2.60 Å. All Cu–Al bond lengths are 2.60 Å. Al is bonded to twelve equivalent Cu atoms to form AlCu12 cuboctahedra that share corners with twelve equivalent AlCu12 cuboctahedra, edges with twenty-four equivalent CuAl4Cu8 cuboctahedra, faces with six equivalent AlCu12 cuboctahedra, and faces with twelve equivalent CuAl4Cu8 cuboctahedra.