Materials Data on K3Cu by Materials Project

Abstract

K3Cu is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. K is bonded to eight equivalent K and four equivalent Cu atoms to form distorted KK8Cu4 cuboctahedra that share corners with twelve equivalent KK8Cu4 cuboctahedra, edges with eight equivalent CuK12 cuboctahedra, edges with sixteen equivalent KK8Cu4 cuboctahedra, faces with four equivalent CuK12 cuboctahedra, and faces with fourteen equivalent KK8Cu4 cuboctahedra. All K–K bond lengths are 4.11 Å. All K–Cu bond lengths are 4.11 Å. Cu is bonded to twelve equivalent K atoms to form distorted CuK12 cuboctahedra that share corners with twelve equivalent CuK12 cuboctahedra, edges with twenty-four equivalent KK8Cu4 cuboctahedra, faces with six equivalent CuK12 cuboctahedra, and faces with twelve equivalent KK8Cu4 cuboctahedra.