Materials Data on Ag3Rh by Materials Project

Abstract

RhAg3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Rh is bonded to twelve equivalent Ag atoms to form RhAg12 cuboctahedra that share corners with six equivalent RhAg12 cuboctahedra, corners with twelve equivalent AgAg8Rh4 cuboctahedra, edges with eighteen equivalent AgAg8Rh4 cuboctahedra, faces with eight equivalent RhAg12 cuboctahedra, and faces with twelve equivalent AgAg8Rh4 cuboctahedra. There are six shorter (2.88 Å) and six longer (2.89 Å) Rh–Ag bond lengths. Ag is bonded to four equivalent Rh and eight equivalent Ag atoms to form distorted AgAg8Rh4 cuboctahedra that share corners with four equivalent RhAg12 cuboctahedra, corners with fourteen equivalent AgAg8Rh4 cuboctahedra, edges with six equivalent RhAg12 cuboctahedra, edges with twelve equivalent AgAg8Rh4 cuboctahedra, faces with four equivalent RhAg12 cuboctahedra, and faces with sixteen equivalent AgAg8Rh4 cuboctahedra. There are a spread of Ag–Ag bond distances ranging from 2.87–2.92 Å.