Materials Data on AgPb3 by Materials Project

Abstract

AgPb3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ag is bonded to twelve equivalent Pb atoms to form AgPb12 cuboctahedra that share corners with six equivalent AgPb12 cuboctahedra, corners with twelve equivalent PbAg4Pb8 cuboctahedra, edges with eighteen equivalent PbAg4Pb8 cuboctahedra, faces with eight equivalent AgPb12 cuboctahedra, and faces with twelve equivalent PbAg4Pb8 cuboctahedra. There are six shorter (3.39 Å) and six longer (3.45 Å) Ag–Pb bond lengths. Pb is bonded to four equivalent Ag and eight equivalent Pb atoms to form distorted PbAg4Pb8 cuboctahedra that share corners with four equivalent AgPb12 cuboctahedra, corners with fourteen equivalent PbAg4Pb8 cuboctahedra, edges with six equivalent AgPb12 cuboctahedra, edges with twelve equivalent PbAg4Pb8 cuboctahedra, faces with four equivalent AgPb12 cuboctahedra, and faces with sixteen equivalent PbAg4Pb8 cuboctahedra. There are a spread of Pb–Pb bond distances ranging from 3.36–3.54 Å.