Materials Data on Al3Cu by Materials Project

Abstract

CuAl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Cu is bonded to twelve equivalent Al atoms to form CuAl12 cuboctahedra that share corners with twelve equivalent CuAl12 cuboctahedra, edges with twenty-four equivalent AlAl8Cu4 cuboctahedra, faces with six equivalent CuAl12 cuboctahedra, and faces with twelve equivalent AlAl8Cu4 cuboctahedra. All Cu–Al bond lengths are 2.77 Å. Al is bonded to four equivalent Cu and eight equivalent Al atoms to form AlAl8Cu4 cuboctahedra that share corners with twelve equivalent AlAl8Cu4 cuboctahedra, edges with eight equivalent CuAl12 cuboctahedra, edges with sixteen equivalent AlAl8Cu4 cuboctahedra, faces with four equivalent CuAl12 cuboctahedra, and faces with fourteen equivalent AlAl8Cu4 cuboctahedra. All Al–Al bond lengths are 2.77 Å.