Materials Data on SnPb by Materials Project

Abstract

SnPb crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Pb is bonded to six equivalent Pb and six equivalent Sn atoms to form PbSn6Pb6 cuboctahedra that share corners with twelve equivalent SnPb6 cuboctahedra, corners with eighteen equivalent PbSn6Pb6 cuboctahedra, edges with six equivalent PbSn6Pb6 cuboctahedra, edges with twelve equivalent SnPb6 cuboctahedra, and faces with eight equivalent PbSn6Pb6 cuboctahedra. All Pb–Pb bond lengths are 3.48 Å. All Pb–Sn bond lengths are 3.49 Å. Sn is bonded to six equivalent Pb atoms to form distorted SnPb6 cuboctahedra that share corners with twelve equivalent PbSn6Pb6 cuboctahedra, corners with twelve equivalent SnPb6 cuboctahedra, edges with six equivalent SnPb6 cuboctahedra, edges with twelve equivalent PbSn6Pb6 cuboctahedra, and faces with two equivalent SnPb6 cuboctahedra.