Materials Data on Ru3Rh by Materials Project
Ru3Rh is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ru is bonded to eight equivalent Ru and four equivalent Rh atoms to form RuRu8Rh4 cuboctahedra that share corners with four equivalent RhRu12 cuboctahedra, corners with fourteen equivalent RuRu8Rh4 cuboctahedra, edges with six equivalent RhRu12 cuboctahedra, edges with twelve equivalent RuRu8Rh4 cuboctahedra, faces with four equivalent RhRu12 cuboctahedra, and faces with sixteen equivalent RuRu8Rh4 cuboctahedra. There are a spread of Ru–Ru bond distances ranging from 2.68–2.74 Å. There are two shorter (2.68 Å) and two longer (2.74 Å) Ru–Rh bond lengths. Rh is bonded to twelve equivalent Ru atoms to form RhRu12 cuboctahedra that share corners with six equivalent RhRu12 cuboctahedra, corners with twelve equivalent RuRu8Rh4 cuboctahedra, edges with eighteen equivalent RuRu8Rh4 cuboctahedra, faces with eight equivalent RhRu12 cuboctahedra, and faces with twelve equivalent RuRu8Rh4 cuboctahedra.