OsRu3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Os(1) is bonded to twelve equivalent Ru(1) atoms to form OsRu12 cuboctahedra that share corners with six equivalent Os(1)Ru12 cuboctahedra, corners with twelve equivalent Ru(1)Os4Ru8 cuboctahedra, edges with eighteen equivalent Ru(1)Os4Ru8 cuboctahedra, faces with eight equivalent Os(1)Ru12 cuboctahedra, and faces with twelve equivalent Ru(1)Os4Ru8 cuboctahedra. Ru(1) is bonded to four equivalent Os(1) and eight equivalent Ru(1) atoms to form RuOs4Ru8 cuboctahedra that share corners with four equivalent Os(1)Ru12 cuboctahedra, corners with fourteen equivalent Ru(1)Os4Ru8 cuboctahedra, edges with six equivalent Os(1)Ru12 cuboctahedra, edges with twelve equivalent Ru(1)Os4Ru8 cuboctahedra, faces with four equivalent Os(1)Ru12 cuboctahedra, and faces with sixteen equivalent Ru(1)Os4Ru8 cuboctahedra.
OsRu3 is Magnesium-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Os(1) is bonded to twelve equivalent Ru(1) atoms to form OsRu12 cuboctahedra that share corners with six equivalent Os(1)Ru12 cuboctahedra, corners with twelve equivalent Ru(1)Os4Ru8 cuboctahedra, edges with eighteen equivalent Ru(1)Os4Ru8 cuboctahedra, faces with eight equivalent Os(1)Ru12 cuboctahedra, and faces with twelve equivalent Ru(1)Os4Ru8 cuboctahedra. There are six shorter (2.65 Å) and six longer (2.72 Å) Os(1)-Ru(1) bond lengths. Ru(1) is bonded to four equivalent Os(1) and eight equivalent Ru(1) atoms to form RuOs4Ru8 cuboctahedra that share corners with four equivalent Os(1)Ru12 cuboctahedra, corners with fourteen equivalent Ru(1)Os4Ru8 cuboctahedra, edges with six equivalent Os(1)Ru12 cuboctahedra, edges with twelve equivalent Ru(1)Os4Ru8 cuboctahedra, faces with four equivalent Os(1)Ru12 cuboctahedra, and faces with sixteen equivalent Ru(1)Os4Ru8 cuboctahedra. There are a spread of Ru(1)-Ru(1) bond distances ranging from 2.66-2.73 Å.