DOI: 10.17188/1283692
title: Materials Data on Cu3Pd by Materials Project

description: Cu3Pd is Uranium Silicide-like structured and crystallizes in the tetragonal P4mm space group. The structure is three-dimensional. there are seven 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 a spread of Pd–Cu bond distances ranging from 2.60–2.63 Å. 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. All Pd–Cu bond lengths are 2.63 Å. In the third 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 (2.63 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 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 four shorter (2.63 Å) and eight longer (2.64 Å) Pd–Cu bond lengths. In the fifth 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 a spread of Pd–Cu bond distances ranging from 2.60–2.63 Å. In the sixth 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 four shorter (2.63 Å) and eight longer (2.64 Å) Pd–Cu bond lengths. In the seventh 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 four shorter (2.62 Å) and eight longer (2.63 Å) Pd–Cu bond lengths. There are sixteen inequivalent Cu sites. In the first 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. There are four shorter (2.63 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 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 (2.61 Å) and four longer (2.63 Å) Cu–Cu bond lengths. In the fourth 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 (2.63 Å) and two longer (2.64 Å) Cu–Cu bond lengths. In the fifth 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 2.60 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 six shorter (2.63 Å) and two longer (2.64 Å) Cu–Cu bond lengths. In the seventh 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 (2.61 Å) and four longer (2.63 Å) Cu–Cu bond lengths. In the eighth 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 (2.63 Å) Cu–Cu bond lengths. In the ninth Cu site, Cu is bonded to four Pd and eight Cu atoms to form distorted 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 (2.60 Å) and four longer (2.63 Å) Cu–Cu bond lengths. In the tenth 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 (2.63 Å) and two longer (2.64 Å) Cu–Cu bond lengths. In the eleventh 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. In the twelfth 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. Both Cu–Cu bond lengths are 2.62 Å. In the thirteenth 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. In the fourteenth 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. In the fifteenth Cu site, Cu is bonded to four Pd and eight Cu atoms to form distorted 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. Both Cu–Cu bond lengths are 2.60 Å. In the sixteenth 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.