DOI: 10.17188/1281813
title: Materials Data on Cu3Pd by Materials Project

description: Cu3Pd is Uranium Silicide-like structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. there are four inequivalent Pd sites. In the first Pd site, Pd is bonded to twelve Cu atoms to form PdCu12 cuboctahedra that share corners with four equivalent CuCu8Pd4 cuboctahedra, corners with eight PdCu12 cuboctahedra, edges with four equivalent PdCu12 cuboctahedra, edges with twenty CuCu8Pd4 cuboctahedra, faces with five PdCu12 cuboctahedra, and faces with thirteen CuCu8Pd4 cuboctahedra. There are eight shorter (2.62 Å) and four longer (2.64 Å) Pd–Cu bond lengths. In the second Pd site, Pd is bonded to twelve Cu atoms to form PdCu12 cuboctahedra that share corners with twelve PdCu12 cuboctahedra, edges with twenty-four CuCu8Pd4 cuboctahedra, faces with six PdCu12 cuboctahedra, and faces with twelve CuCu8Pd4 cuboctahedra. There are eight shorter (2.62 Å) and four longer (2.64 Å) Pd–Cu bond lengths. In the third Pd site, Pd is bonded to twelve Cu atoms to form PdCu12 cuboctahedra that share corners with four equivalent CuCu8Pd4 cuboctahedra, corners with eight PdCu12 cuboctahedra, edges with four equivalent PdCu12 cuboctahedra, edges with twenty CuCu8Pd4 cuboctahedra, faces with five PdCu12 cuboctahedra, and faces with thirteen CuCu8Pd4 cuboctahedra. There are eight shorter (2.62 Å) and four longer (2.64 Å) Pd–Cu bond lengths. In the fourth Pd site, Pd is bonded to twelve Cu atoms to form PdCu12 cuboctahedra that share corners with twelve PdCu12 cuboctahedra, edges with twenty-four CuCu8Pd4 cuboctahedra, faces with six PdCu12 cuboctahedra, and faces with twelve CuCu8Pd4 cuboctahedra. There are eight shorter (2.62 Å) and four longer (2.64 Å) Pd–Cu bond lengths. There are nine inequivalent Cu sites. In the first Cu site, Cu is bonded to four Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with twelve CuCu8Pd4 cuboctahedra, edges with eight PdCu12 cuboctahedra, edges with sixteen CuCu8Pd4 cuboctahedra, faces with four PdCu12 cuboctahedra, and faces with fourteen CuCu8Pd4 cuboctahedra. There are four shorter (2.62 Å) and four longer (2.64 Å) Cu–Cu bond lengths. In the second Cu site, Cu is bonded to four equivalent Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with twelve CuCu8Pd4 cuboctahedra, edges with eight PdCu12 cuboctahedra, edges with sixteen CuCu8Pd4 cuboctahedra, faces with four equivalent PdCu12 cuboctahedra, and faces with fourteen CuCu8Pd4 cuboctahedra. All Cu–Cu bond lengths are 2.62 Å. In the third Cu site, Cu is bonded to four equivalent Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with four equivalent PdCu12 cuboctahedra, corners with eight CuCu8Pd4 cuboctahedra, edges with four equivalent PdCu12 cuboctahedra, edges with twenty CuCu8Pd4 cuboctahedra, faces with five PdCu12 cuboctahedra, and faces with thirteen CuCu8Pd4 cuboctahedra. All Cu–Cu bond lengths are 2.62 Å. In the fourth Cu site, Cu is bonded to four equivalent Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with four equivalent PdCu12 cuboctahedra, corners with eight CuCu8Pd4 cuboctahedra, edges with four equivalent PdCu12 cuboctahedra, edges with twenty CuCu8Pd4 cuboctahedra, faces with five PdCu12 cuboctahedra, and faces with thirteen CuCu8Pd4 cuboctahedra. All Cu–Cu bond lengths are 2.62 Å. In the fifth Cu site, Cu is bonded to four Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with twelve CuCu8Pd4 cuboctahedra, edges with eight PdCu12 cuboctahedra, edges with sixteen CuCu8Pd4 cuboctahedra, faces with four PdCu12 cuboctahedra, and faces with fourteen CuCu8Pd4 cuboctahedra. All Cu–Cu bond lengths are 2.64 Å. In the sixth Cu site, Cu is bonded to four Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with twelve CuCu8Pd4 cuboctahedra, edges with eight PdCu12 cuboctahedra, edges with sixteen CuCu8Pd4 cuboctahedra, faces with four PdCu12 cuboctahedra, and faces with fourteen CuCu8Pd4 cuboctahedra. There are two shorter (2.62 Å) and four longer (2.64 Å) Cu–Cu bond lengths. In the seventh Cu site, Cu is bonded to four equivalent Pd and eight equivalent Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with twelve CuCu8Pd4 cuboctahedra, edges with eight equivalent PdCu12 cuboctahedra, edges with sixteen equivalent CuCu8Pd4 cuboctahedra, faces with four equivalent PdCu12 cuboctahedra, and faces with fourteen CuCu8Pd4 cuboctahedra. In the eighth Cu site, Cu is bonded to four equivalent Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with twelve CuCu8Pd4 cuboctahedra, edges with eight equivalent PdCu12 cuboctahedra, edges with sixteen CuCu8Pd4 cuboctahedra, faces with four equivalent PdCu12 cuboctahedra, and faces with fourteen CuCu8Pd4 cuboctahedra. All Cu–Cu bond lengths are 2.64 Å. In the ninth Cu site, Cu is bonded to four equivalent Pd and eight Cu atoms to form CuCu8Pd4 cuboctahedra that share corners with twelve CuCu8Pd4 cuboctahedra, edges with eight equivalent PdCu12 cuboctahedra, edges with sixteen CuCu8Pd4 cuboctahedra, faces with four equivalent PdCu12 cuboctahedra, and faces with fourteen CuCu8Pd4 cuboctahedra.