Y3In is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Y(1) is bonded to eight equivalent Y(1) and four equivalent In(1) atoms to form distorted YY8In4 cuboctahedra that share corners with four equivalent In(1)Y12 cuboctahedra, corners with fourteen equivalent Y(1)Y8In4 cuboctahedra, edges with six equivalent In(1)Y12 cuboctahedra, edges with twelve equivalent Y(1)Y8In4 cuboctahedra, faces with four equivalent In(1)Y12 cuboctahedra, and faces with sixteen equivalent Y(1)Y8In4 cuboctahedra. In(1) is bonded to twelve equivalent Y(1) atoms to form InY12 cuboctahedra that share corners with six equivalent In(1)Y12 cuboctahedra, corners with twelve equivalent Y(1)Y8In4 cuboctahedra, edges with eighteen equivalent Y(1)Y8In4 cuboctahedra, faces with eight equivalent In(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)Y8In4 cuboctahedra.
Y3In is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Y(1) is bonded to eight equivalent Y(1) and four equivalent In(1) atoms to form distorted YY8In4 cuboctahedra that share corners with four equivalent In(1)Y12 cuboctahedra, corners with fourteen equivalent Y(1)Y8In4 cuboctahedra, edges with six equivalent In(1)Y12 cuboctahedra, edges with twelve equivalent Y(1)Y8In4 cuboctahedra, faces with four equivalent In(1)Y12 cuboctahedra, and faces with sixteen equivalent Y(1)Y8In4 cuboctahedra. There are a spread of Y(1)-Y(1) bond distances ranging from 3.36-3.55 Å. There are two shorter (3.43 Å) and two longer (3.45 Å) Y(1)-In(1) bond lengths. In(1) is bonded to twelve equivalent Y(1) atoms to form InY12 cuboctahedra that share corners with six equivalent In(1)Y12 cuboctahedra, corners with twelve equivalent Y(1)Y8In4 cuboctahedra, edges with eighteen equivalent Y(1)Y8In4 cuboctahedra, faces with eight equivalent In(1)Y12 cuboctahedra, and faces with twelve equivalent Y(1)Y8In4 cuboctahedra.