Be3Ru is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to eight equivalent Be(1) and four equivalent Ru(1) atoms to form distorted BeBe8Ru4 cuboctahedra that share corners with four equivalent Ru(1)Be12 cuboctahedra; corners with fourteen Be(1,1)Be8Ru4 cuboctahedra; edges with six equivalent Ru(1)Be12 cuboctahedra; edges with twelve equivalent Be(1)Be8Ru4 cuboctahedra; faces with four equivalent Ru(1)Be12 cuboctahedra; and faces with sixteen Be(1,1)Be8Ru4 cuboctahedra. In the second Be site, Be(1) is bonded to eight Be(1,1) and four equivalent Ru(1) atoms to form distorted BeBe8Ru4 cuboctahedra that share corners with four equivalent Ru(1)Be12 cuboctahedra; corners with fourteen Be(1,1)Be8Ru4 cuboctahedra; edges with six equivalent Ru(1)Be12 cuboctahedra; edges with twelve Be(1,1)Be8Ru4 cuboctahedra; faces with four equivalent Ru(1)Be12 cuboctahedra; and faces with sixteen Be(1,1)Be8Ru4 cuboctahedra. Ru(1) is bonded to twelve Be(1,1) atoms to form RuBe12 cuboctahedra that share corners with six equivalent Ru(1)Be12 cuboctahedra; corners with twelve Be(1,1)Be8Ru4 cuboctahedra; edges with eighteen Be(1,1)Be8Ru4 cuboctahedra; faces with eight equivalent Ru(1)Be12 cuboctahedra; and faces with twelve Be(1,1)Be8Ru4 cuboctahedra.
Be3Ru is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded to eight equivalent Be(1) and four equivalent Ru(1) atoms to form distorted BeBe8Ru4 cuboctahedra that share corners with four equivalent Ru(1)Be12 cuboctahedra; corners with fourteen Be(1,1)Be8Ru4 cuboctahedra; edges with six equivalent Ru(1)Be12 cuboctahedra; edges with twelve equivalent Be(1)Be8Ru4 cuboctahedra; faces with four equivalent Ru(1)Be12 cuboctahedra; and faces with sixteen Be(1,1)Be8Ru4 cuboctahedra. There are a spread of Be(1)-Be(1) bond distances ranging from 2.30-2.47 Å. There are two shorter (2.36 Å) and two longer (2.39 Å) Be(1)-Ru(1) bond lengths. In the second Be site, Be(1) is bonded to eight Be(1,1) and four equivalent Ru(1) atoms to form distorted BeBe8Ru4 cuboctahedra that share corners with four equivalent Ru(1)Be12 cuboctahedra; corners with fourteen Be(1,1)Be8Ru4 cuboctahedra; edges with six equivalent Ru(1)Be12 cuboctahedra; edges with twelve Be(1,1)Be8Ru4 cuboctahedra; faces with four equivalent Ru(1)Be12 cuboctahedra; and faces with sixteen Be(1,1)Be8Ru4 cuboctahedra. There are a spread of Be(1)-Be(1) bond distances ranging from 2.30-2.47 Å. There are two shorter (2.36 Å) and two longer (2.39 Å) Be(1)-Ru(1) bond lengths. Ru(1) is bonded to twelve Be(1,1) atoms to form RuBe12 cuboctahedra that share corners with six equivalent Ru(1)Be12 cuboctahedra; corners with twelve Be(1,1)Be8Ru4 cuboctahedra; edges with eighteen Be(1,1)Be8Ru4 cuboctahedra; faces with eight equivalent Ru(1)Be12 cuboctahedra; and faces with twelve Be(1,1)Be8Ru4 cuboctahedra.